Finding the Fourth Proportional to 16,781.20, 25,171.69 and 5,695.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,781.20 : 25,171.69 = 5,695.69 : x
2. Step 2: Convert to fraction form
   16,781.20/25,171.69 = 5,695.69/x
3. Step 3: Cross multiply
   16,781.20x = 25,171.69 × 5,695.69
4. Step 4: Simplify right side
   16,781.20x = 143,370,143.02
5. Step 5: Solve for x
   x = 143,370,143.02/16,781.20
6. Step 6: Final answer
   x = 8,543.50