Considering that with 32 bit Windows, you are restricted to roughly 3.5GB of RAM, it should be obvious that X-Plane 11 needing about 8GB of RAM, a 32-bit version does not make any sense.
Assuming your CPU is capable of 64 bit, you could try to make a second installation of a 64bit operating system (Linux maybe if you are not afraid of it), the try the X-Plane 11 Demo.
I would not recommend X-Plane 10 on 32bit either, because it needs a LOT of RAM, too. X-Plane 9 should work, however (unfortunately real weather stopped working due to a change at the NOAA servers).