Finding the Fourth Proportional to 22,508.28, 31,059.83 and 12,436.61

Step by Step Solution

1. Step 1: Write the proportion equation
   22,508.28 : 31,059.83 = 12,436.61 : x
2. Step 2: Convert to fraction form
   22,508.28/31,059.83 = 12,436.61/x
3. Step 3: Cross multiply
   22,508.28x = 31,059.83 × 12,436.61
4. Step 4: Simplify right side
   22,508.28x = 386,278,992.38
5. Step 5: Solve for x
   x = 386,278,992.38/22,508.28
6. Step 6: Final answer
   x = 17,161.64