Finding the Fourth Proportional to 16,900.61, 25,349.29 and 5,210.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,900.61 : 25,349.29 = 5,210.69 : x
2. Step 2: Convert to fraction form
   16,900.61/25,349.29 = 5,210.69/x
3. Step 3: Cross multiply
   16,900.61x = 25,349.29 × 5,210.69
4. Step 4: Simplify right side
   16,900.61x = 132,087,291.91
5. Step 5: Solve for x
   x = 132,087,291.91/16,900.61
6. Step 6: Final answer
   x = 7,815.53