Finding the Fourth Proportional to 22,910.72, 34,377.78 and 10,916.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,910.72 : 34,377.78 = 10,916.42 : x
2. Step 2: Convert to fraction form
   22,910.72/34,377.78 = 10,916.42/x
3. Step 3: Cross multiply
   22,910.72x = 34,377.78 × 10,916.42
4. Step 4: Simplify right side
   22,910.72x = 375,282,285.15
5. Step 5: Solve for x
   x = 375,282,285.15/22,910.72
6. Step 6: Final answer
   x = 16,380.20