Finding the Fourth Proportional to 62,807.34, 86,605.02 and 53,242.86

Step by Step Solution

1. Step 1: Write the proportion equation
   62,807.34 : 86,605.02 = 53,242.86 : x
2. Step 2: Convert to fraction form
   62,807.34/86,605.02 = 53,242.86/x
3. Step 3: Cross multiply
   62,807.34x = 86,605.02 × 53,242.86
4. Step 4: Simplify right side
   62,807.34x = 4,611,098,955.16
5. Step 5: Solve for x
   x = 4,611,098,955.16/62,807.34
6. Step 6: Final answer
   x = 73,416.56