Igor, who is 4 ft 8 in. tall, wishes to find the height of an oak tree in front of his castle. He walks along the shadow of the tree until the end of his shadow exactly overlaps the end of the treetop’s shadow. At that point, he is 22 ft from the foot of the tree and 11 ft from the end of the shadows.

How tall is the oak tree?

Create a diagram to show the problem situation.