Finding the Fourth Proportional to 62,814.29, 86,689.04 and 42,715.76

Step by Step Solution

1. Step 1: Write the proportion equation
   62,814.29 : 86,689.04 = 42,715.76 : x
2. Step 2: Convert to fraction form
   62,814.29/86,689.04 = 42,715.76/x
3. Step 3: Cross multiply
   62,814.29x = 86,689.04 × 42,715.76
4. Step 4: Simplify right side
   62,814.29x = 3,702,987,580.25
5. Step 5: Solve for x
   x = 3,702,987,580.25/62,814.29
6. Step 6: Final answer
   x = 58,951.36