Finding the Fourth Proportional to 16,861.97, 25,308.47 and 8,547.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,861.97 : 25,308.47 = 8,547.89 : x
2. Step 2: Convert to fraction form
   16,861.97/25,308.47 = 8,547.89/x
3. Step 3: Cross multiply
   16,861.97x = 25,308.47 × 8,547.89
4. Step 4: Simplify right side
   16,861.97x = 216,333,912.46
5. Step 5: Solve for x
   x = 216,333,912.46/16,861.97
6. Step 6: Final answer
   x = 12,829.69