Finding the Fourth Proportional to 88.01, 131.91 and 42.38

Step by Step Solution

1. Step 1: Write the proportion equation
   88.01 : 131.91 = 42.38 : x
2. Step 2: Convert to fraction form
   88.01/131.91 = 42.38/x
3. Step 3: Cross multiply
   88.01x = 131.91 × 42.38
4. Step 4: Simplify right side
   88.01x = 5,590.35
5. Step 5: Solve for x
   x = 5,590.35/88.01
6. Step 6: Final answer
   x = 63.52