Finding the Fourth Proportional to 16,494, 22,761.72 and 9,042

Step by Step Solution

1. Step 1: Write the proportion equation
   16,494 : 22,761.72 = 9,042 : x
2. Step 2: Convert to fraction form
   16,494/22,761.72 = 9,042/x
3. Step 3: Cross multiply
   16,494x = 22,761.72 × 9,042
4. Step 4: Simplify right side
   16,494x = 205,811,472.24
5. Step 5: Solve for x
   x = 205,811,472.24/16,494
6. Step 6: Final answer
   x = 12,477.96