Finding the Fourth Proportional to 17,108.38, 25,657.71 and 10,858.96

Step by Step Solution

1. Step 1: Write the proportion equation
   17,108.38 : 25,657.71 = 10,858.96 : x
2. Step 2: Convert to fraction form
   17,108.38/25,657.71 = 10,858.96/x
3. Step 3: Cross multiply
   17,108.38x = 25,657.71 × 10,858.96
4. Step 4: Simplify right side
   17,108.38x = 278,616,046.58
5. Step 5: Solve for x
   x = 278,616,046.58/17,108.38
6. Step 6: Final answer
   x = 16,285.36