Roma are willing to loan out the 20-year-old following the arrival of Italy striker Luca Toni to the Eternal City from Bayern Munich.
"If the player will reach an agreement with Fulham, he will go to England on loan for the next six months, with an option of extending his stay for the following year," Okaka's agent Domenico Scopelliti told www.calciomercatoweb.com. "Roma and Fulham appear to have reached an agreement on a loan deal."
Fulham are looking to reinforce their attacking line with Bobby Zamora currently sidelined through injury.
Okaka has made six league appearances for Claudio Ranieri's side this season and is under contract with the Serie A club until June 2012.