Finding the Fourth Proportional to 88.86, 133.10 and 40.72

Step by Step Solution

1. Step 1: Write the proportion equation
   88.86 : 133.10 = 40.72 : x
2. Step 2: Convert to fraction form
   88.86/133.10 = 40.72/x
3. Step 3: Cross multiply
   88.86x = 133.10 × 40.72
4. Step 4: Simplify right side
   88.86x = 5,419.83
5. Step 5: Solve for x
   x = 5,419.83/88.86
6. Step 6: Final answer
   x = 60.99