Set up proxy on android x 86 in virtual box(Basically make android emulator work with static proxy)

Hi Guys, I have virtual box (oracle) installed in mac, and i got androidx 86 installed in virtual box, now the internet on android does not work when i connect to proxy, but the internet on mac works, all the apps on mac work but internet on android stops working, i just want internet on android to work via proxy only, i have all the static proxy credentials()ip, port username and password, Can you make it work? also there is an app its called as proxy droid, it sends all the internet traffic via proxy, if you can set up that app in the android then it might do the job too. By the way the proxy software i use on mac is proxifier, it sends all the computer traffic via my specified usa proxy. Basically I want android emulator to work on windows or mac, i want it to be able to work with my specified proxy and i want it to be able to download apps on it, mainly ebay, amazon etc. So in brief an android on a pc or mac connected to internet via proxy (static usa ip) and i want it to be able to download apps on it too from play store.