Finding the Fourth Proportional to 109.24, 150.88 and 72.33

Step by Step Solution

1. Step 1: Write the proportion equation
   109.24 : 150.88 = 72.33 : x
2. Step 2: Convert to fraction form
   109.24/150.88 = 72.33/x
3. Step 3: Cross multiply
   109.24x = 150.88 × 72.33
4. Step 4: Simplify right side
   109.24x = 10,913.58
5. Step 5: Solve for x
   x = 10,913.58/109.24
6. Step 6: Final answer
   x = 99.91