There is nothing wrong in knowing how much your EVE fortune is equivalent to in US dollars, a rough estimate could be 75 mil ISK = 1 $ (US dollar).
That said, it can’t be said enough that RMT (real money trade) is against the EULA/ToS and will get you banned! If you suspect RMT taking place I encourage you to report it bringing all the proof you can gather. If you don’t know how, you can read the thread on that topic here.
I’ll go ahead and close this thread now.