Finding the Fourth Proportional to 22,304.52, 30,775.54 and 15,139.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,304.52 : 30,775.54 = 15,139.96 : x
2. Step 2: Convert to fraction form
   22,304.52/30,775.54 = 15,139.96/x
3. Step 3: Cross multiply
   22,304.52x = 30,775.54 × 15,139.96
4. Step 4: Simplify right side
   22,304.52x = 465,940,444.58
5. Step 5: Solve for x
   x = 465,940,444.58/22,304.52
6. Step 6: Final answer
   x = 20,889.96