Finding the Fourth Proportional to 62,578.48, 86,359.56 and 38,704.72

Step by Step Solution

1. Step 1: Write the proportion equation
   62,578.48 : 86,359.56 = 38,704.72 : x
2. Step 2: Convert to fraction form
   62,578.48/86,359.56 = 38,704.72/x
3. Step 3: Cross multiply
   62,578.48x = 86,359.56 × 38,704.72
4. Step 4: Simplify right side
   62,578.48x = 3,342,522,589.12
5. Step 5: Solve for x
   x = 3,342,522,589.12/62,578.48
6. Step 6: Final answer
   x = 53,413.29