In short im running a mod pack using forge 2847

The pack is Tekxit 3 1.12.2 (Official)

The only issue im facing is the correct version to download and use on my server.

What version do i need for forge 2847 (forge-1.12.2-14.23.5.2847-universal.jar) ?

you cant even provide a version to help? easy question. just tell me the forge compatible version. none of your FE versions specify what forge version they use.

Forge Essential is compatible with most versions of Forge. Build 88 was build with Forge 2784. However, we recently updated to forge 2847 in build 89.

Yikes! That sounds problematic. Also, we can't help you for not following our guidelines. See https://github.com/ForgeEssentials/ForgeEssentials/issues/new?assignees=&labels=needs-verification%2C+potential+bug&template=bug_report.md&title=%5B1.12.2%5D+%5BBUG%5D
Closing this one and please do a proper report.