Finding the Fourth Proportional to 22,939.24, 34,404.42 and 10,455.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,939.24 : 34,404.42 = 10,455.76 : x
2. Step 2: Convert to fraction form
   22,939.24/34,404.42 = 10,455.76/x
3. Step 3: Cross multiply
   22,939.24x = 34,404.42 × 10,455.76
4. Step 4: Simplify right side
   22,939.24x = 359,724,358.46
5. Step 5: Solve for x
   x = 359,724,358.46/22,939.24
6. Step 6: Final answer
   x = 15,681.62