Finding the Fourth Proportional to 16,899.71, 25,350.69 and 5,814.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,899.71 : 25,350.69 = 5,814.20 : x
2. Step 2: Convert to fraction form
   16,899.71/25,350.69 = 5,814.20/x
3. Step 3: Cross multiply
   16,899.71x = 25,350.69 × 5,814.20
4. Step 4: Simplify right side
   16,899.71x = 147,393,855.04
5. Step 5: Solve for x
   x = 147,393,855.04/16,899.71
6. Step 6: Final answer
   x = 8,721.68