Finding the Fourth Proportional to 16,502.72, 22,781.60 and 10,455.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,502.72 : 22,781.60 = 10,455.98 : x
2. Step 2: Convert to fraction form
   16,502.72/22,781.60 = 10,455.98/x
3. Step 3: Cross multiply
   16,502.72x = 22,781.60 × 10,455.98
4. Step 4: Simplify right side
   16,502.72x = 238,203,787.78
5. Step 5: Solve for x
   x = 238,203,787.78/16,502.72
6. Step 6: Final answer
   x = 14,434.22