Finding the Fourth Proportional to 22,081.14, 30,470.94 and 12,520.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,081.14 : 30,470.94 = 12,520.89 : x
2. Step 2: Convert to fraction form
   22,081.14/30,470.94 = 12,520.89/x
3. Step 3: Cross multiply
   22,081.14x = 30,470.94 × 12,520.89
4. Step 4: Simplify right side
   22,081.14x = 381,523,287.94
5. Step 5: Solve for x
   x = 381,523,287.94/22,081.14
6. Step 6: Final answer
   x = 17,278.24