Finding the Fourth Proportional to 62.29, 86.71 and 62.29

Step by Step Solution

1. Step 1: Write the proportion equation
   62.29 : 86.71 = 62.29 : x
2. Step 2: Convert to fraction form
   62.29/86.71 = 62.29/x
3. Step 3: Cross multiply
   62.29x = 86.71 × 62.29
4. Step 4: Simplify right side
   62.29x = 5,401.17
5. Step 5: Solve for x
   x = 5,401.17/62.29
6. Step 6: Final answer
   x = 86.71