Finding the Fourth Proportional to 22,666.10, 31,278.83 and 12,594.29

Step by Step Solution

1. Step 1: Write the proportion equation
   22,666.10 : 31,278.83 = 12,594.29 : x
2. Step 2: Convert to fraction form
   22,666.10/31,278.83 = 12,594.29/x
3. Step 3: Cross multiply
   22,666.10x = 31,278.83 × 12,594.29
4. Step 4: Simplify right side
   22,666.10x = 393,934,436.52
5. Step 5: Solve for x
   x = 393,934,436.52/22,666.10
6. Step 6: Final answer
   x = 17,379.90