Finding the Fourth Proportional to 16,711.38, 23,061.96 and 9,157.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,711.38 : 23,061.96 = 9,157.86 : x
2. Step 2: Convert to fraction form
   16,711.38/23,061.96 = 9,157.86/x
3. Step 3: Cross multiply
   16,711.38x = 23,061.96 × 9,157.86
4. Step 4: Simplify right side
   16,711.38x = 211,198,201.01
5. Step 5: Solve for x
   x = 211,198,201.01/16,711.38
6. Step 6: Final answer
   x = 12,637.99