x more than 50% fishes of a pond are taken and fishes equal to square root of total number of fishes are sold for aquarium purposes. 1 more than 10% of the remaining fishes are purchased by a shopkeeper and fishes equal to square root of the number of fishes purchased by shopkeeper are sold for food purposes.

If 16 fishes are sold for food purpose, then what will be the minimum possible value of x ?