Finding the Fourth Proportional to 16,761.40, 25,142.14 and 5,665.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,761.40 : 25,142.14 = 5,665.12 : x
2. Step 2: Convert to fraction form
   16,761.40/25,142.14 = 5,665.12/x
3. Step 3: Cross multiply
   16,761.40x = 25,142.14 × 5,665.12
4. Step 4: Simplify right side
   16,761.40x = 142,433,240.16
5. Step 5: Solve for x
   x = 142,433,240.16/16,761.40
6. Step 6: Final answer
   x = 8,497.69