Finding the Fourth Proportional to 22,939.18, 34,413.71 and 7,143.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,939.18 : 34,413.71 = 7,143.86 : x
2. Step 2: Convert to fraction form
   22,939.18/34,413.71 = 7,143.86/x
3. Step 3: Cross multiply
   22,939.18x = 34,413.71 × 7,143.86
4. Step 4: Simplify right side
   22,939.18x = 245,846,776.64
5. Step 5: Solve for x
   x = 245,846,776.64/22,939.18
6. Step 6: Final answer
   x = 10,717.33