Finding the Fourth Proportional to 62.71, 86.56 and 42.01

Step by Step Solution

1. Step 1: Write the proportion equation
   62.71 : 86.56 = 42.01 : x
2. Step 2: Convert to fraction form
   62.71/86.56 = 42.01/x
3. Step 3: Cross multiply
   62.71x = 86.56 × 42.01
4. Step 4: Simplify right side
   62.71x = 3,636.06
5. Step 5: Solve for x
   x = 3,636.06/62.71
6. Step 6: Final answer
   x = 57.98