Q: it is possible to track lost macbook pro by login iCloud account?

Did you turn Find My Mac on before you lost it, yes or no.

It's possible only if Find My Mac was turned on.

Set up Find My iPhone, iPad, and Mac - Apple Support

https://www.apple.com/support/icloud/find-my-iphone-ipad-ipod-mac/

Did you or did you not turn "Find My Mac" on, simple question.

Again, you can only track the computer if "Find My Mac" was turned on.

Was "Find My Mac" turned on?

i recently found a macbook pro & am trying to figure out how to get it to the owner.

Turn it in to the Police