Finding the Fourth Proportional to 59.92, 82.71 and 42.47

Step by Step Solution

1. Step 1: Write the proportion equation
   59.92 : 82.71 = 42.47 : x
2. Step 2: Convert to fraction form
   59.92/82.71 = 42.47/x
3. Step 3: Cross multiply
   59.92x = 82.71 × 42.47
4. Step 4: Simplify right side
   59.92x = 3,512.28
5. Step 5: Solve for x
   x = 3,512.28/59.92
6. Step 6: Final answer
   x = 58.62