i'm assuming you're looking at the Innsbruck Lit 248BH.
by the way, just because the model number has 24 in it, doesn't mean that's its actual length.
the 248BH is 26'5" long and has a fictional "dry" weight of 3625lbs.
so, add the 300-400lbs. for the "options"(awning, oven, microwave, a/c, spare tire, and so on.
now, you're near 4000lbs. before water, battery, propane and cargo.
and the 5500lbs. towing capacity is rated with only a 150lb. driver in it. anything or anyone else in the Explorer, will lower that number by its weight.
if you're in Florida, you could be o.k. for awhile, as long as you don't head to any mountains/hills.
i owned an Explorer Sport with the same engine. even if i had the 4 door Explorer, there's no way i'd tow a trailer of that size, with it.