To estimate the price of the 2021 Toyota Fortuner 2.7L EXR GX2 2WD (Base) with 78203 km mileage, I first considered the selling prices of similar cars. The selling prices ranged from AED 93491.5 to AED 99441.5, with an average around AED 97000. These cars had mileages ranging from 57509 to 83435 km. The car in question has a mileage of 78203 km, which is within this range. Next, I looked at the listed prices of similar cars, which ranged from AED 99990 to AED 114990. These prices are generally higher than selling prices, indicating negotiation room. Considering the car's average condition and the fact that it is close in mileage to the sold cars, I estimated the market price slightly below the average selling price to account for its condition and current market trends.