Finding the Fourth Proportional to 16,865.56, 25,313.89 and 8,551.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,865.56 : 25,313.89 = 8,551.38 : x
2. Step 2: Convert to fraction form
   16,865.56/25,313.89 = 8,551.38/x
3. Step 3: Cross multiply
   16,865.56x = 25,313.89 × 8,551.38
4. Step 4: Simplify right side
   16,865.56x = 216,468,566.10
5. Step 5: Solve for x
   x = 216,468,566.10/16,865.56
6. Step 6: Final answer
   x = 12,834.95