Finding the Fourth Proportional to 88.02, 131.99 and 42.38

Step by Step Solution

1. Step 1: Write the proportion equation
   88.02 : 131.99 = 42.38 : x
2. Step 2: Convert to fraction form
   88.02/131.99 = 42.38/x
3. Step 3: Cross multiply
   88.02x = 131.99 × 42.38
4. Step 4: Simplify right side
   88.02x = 5,592.86
5. Step 5: Solve for x
   x = 5,592.86/88.02
6. Step 6: Final answer
   x = 63.54