Finding the Fourth Proportional to 103,196.86, 142,413.27 and 57,884.90

Step by Step Solution

1. Step 1: Write the proportion equation
   103,196.86 : 142,413.27 = 57,884.90 : x
2. Step 2: Convert to fraction form
   103,196.86/142,413.27 = 57,884.90/x
3. Step 3: Cross multiply
   103,196.86x = 142,413.27 × 57,884.90
4. Step 4: Simplify right side
   103,196.86x = 8,243,577,892.62
5. Step 5: Solve for x
   x = 8,243,577,892.62/103,196.86
6. Step 6: Final answer
   x = 79,882.06