Finding the Fourth Proportional to 22,929.57, 34,399.55 and 8,138.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,929.57 : 34,399.55 = 8,138.50 : x
2. Step 2: Convert to fraction form
   22,929.57/34,399.55 = 8,138.50/x
3. Step 3: Cross multiply
   22,929.57x = 34,399.55 × 8,138.50
4. Step 4: Simplify right side
   22,929.57x = 279,960,672.02
5. Step 5: Solve for x
   x = 279,960,672.02/22,929.57
6. Step 6: Final answer
   x = 12,209.59