Finding the Fourth Proportional to 22,721.27, 34,083.72 and 7,929.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,721.27 : 34,083.72 = 7,929.86 : x
2. Step 2: Convert to fraction form
   22,721.27/34,083.72 = 7,929.86/x
3. Step 3: Cross multiply
   22,721.27x = 34,083.72 × 7,929.86
4. Step 4: Simplify right side
   22,721.27x = 270,278,957.46
5. Step 5: Solve for x
   x = 270,278,957.46/22,721.27
6. Step 6: Final answer
   x = 11,895.42