Finding the Fourth Proportional to 16,879.86, 25,300.49 and 10,291.41

Step by Step Solution

1. Step 1: Write the proportion equation
   16,879.86 : 25,300.49 = 10,291.41 : x
2. Step 2: Convert to fraction form
   16,879.86/25,300.49 = 10,291.41/x
3. Step 3: Cross multiply
   16,879.86x = 25,300.49 × 10,291.41
4. Step 4: Simplify right side
   16,879.86x = 260,377,664.33
5. Step 5: Solve for x
   x = 260,377,664.33/16,879.86
6. Step 6: Final answer
   x = 15,425.35