Why your 2006 Toyota raw4 has water on the passenger floor front?

Is the colour of the fluid green? or red, or does it smell? that's a definite sign that radiator coolant is finding its way onto your floor from the radiator, and if you let it continue and don't top up the radiator fluid inside the engine bay, your engine will overheat and die.

Sounds to me like a heater radiator leak, don't drive the car until you are regularly checking the level of the fluid in the radiator and get it to a mechanic to swap that radiator out for a new one.

and in addition get the mechanic to flush out the radiator fluid for new stuff.