Finding the Fourth Proportional to 22,160.38, 30,580.17 and 12,088.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,160.38 : 30,580.17 = 12,088.72 : x
2. Step 2: Convert to fraction form
   22,160.38/30,580.17 = 12,088.72/x
3. Step 3: Cross multiply
   22,160.38x = 30,580.17 × 12,088.72
4. Step 4: Simplify right side
   22,160.38x = 369,675,112.68
5. Step 5: Solve for x
   x = 369,675,112.68/22,160.38
6. Step 6: Final answer
   x = 16,681.80