Finding the Fourth Proportional to 109.33, 150.78 and 72.52

Step by Step Solution

1. Step 1: Write the proportion equation
   109.33 : 150.78 = 72.52 : x
2. Step 2: Convert to fraction form
   109.33/150.78 = 72.52/x
3. Step 3: Cross multiply
   109.33x = 150.78 × 72.52
4. Step 4: Simplify right side
   109.33x = 10,934.57
5. Step 5: Solve for x
   x = 10,934.57/109.33
6. Step 6: Final answer
   x = 100.01