Finding the Fourth Proportional to 16,781.27, 25,156.18 and 5,680.19

Step by Step Solution

1. Step 1: Write the proportion equation
   16,781.27 : 25,156.18 = 5,680.19 : x
2. Step 2: Convert to fraction form
   16,781.27/25,156.18 = 5,680.19/x
3. Step 3: Cross multiply
   16,781.27x = 25,156.18 × 5,680.19
4. Step 4: Simplify right side
   16,781.27x = 142,891,742.09
5. Step 5: Solve for x
   x = 142,891,742.09/16,781.27
6. Step 6: Final answer
   x = 8,514.96