Howdy.
That's a center console, isn't it?
Is the tank above the deck under the console?
The fuel line to the motor is always on top of the tank and is usually routed through a chase or tube to the back. Securely tie some heavy twine to the hose and pull it it out. The twine is to pull the new hose through the chase. In fact, tie two lengths of twine and leave one in the chase to pull other stuff at a later time.