Finding the Fourth Proportional to 16,807.27, 25,214.55 and 5,120.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,807.27 : 25,214.55 = 5,120.18 : x
2. Step 2: Convert to fraction form
   16,807.27/25,214.55 = 5,120.18/x
3. Step 3: Cross multiply
   16,807.27x = 25,214.55 × 5,120.18
4. Step 4: Simplify right side
   16,807.27x = 129,103,034.62
5. Step 5: Solve for x
   x = 129,103,034.62/16,807.27
6. Step 6: Final answer
   x = 7,681.38