Finding the Fourth Proportional to 62,901.81, 86,790.25 and 45,915.31

Step by Step Solution

1. Step 1: Write the proportion equation
   62,901.81 : 86,790.25 = 45,915.31 : x
2. Step 2: Convert to fraction form
   62,901.81/86,790.25 = 45,915.31/x
3. Step 3: Cross multiply
   62,901.81x = 86,790.25 × 45,915.31
4. Step 4: Simplify right side
   62,901.81x = 3,985,001,004.15
5. Step 5: Solve for x
   x = 3,985,001,004.15/62,901.81
6. Step 6: Final answer
   x = 63,352.72