Finding the Fourth Proportional to 22,965.78, 31,677.73 and 16,581.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,965.78 : 31,677.73 = 16,581.86 : x
2. Step 2: Convert to fraction form
   22,965.78/31,677.73 = 16,581.86/x
3. Step 3: Cross multiply
   22,965.78x = 31,677.73 × 16,581.86
4. Step 4: Simplify right side
   22,965.78x = 525,275,683.98
5. Step 5: Solve for x
   x = 525,275,683.98/22,965.78
6. Step 6: Final answer
   x = 22,872.10