Finding the Fourth Proportional to 22,040.28, 30,414.15 and 12,608.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,040.28 : 30,414.15 = 12,608.91 : x
2. Step 2: Convert to fraction form
   22,040.28/30,414.15 = 12,608.91/x
3. Step 3: Cross multiply
   22,040.28x = 30,414.15 × 12,608.91
4. Step 4: Simplify right side
   22,040.28x = 383,489,280.08
5. Step 5: Solve for x
   x = 383,489,280.08/22,040.28
6. Step 6: Final answer
   x = 17,399.47