Finding the Fourth Proportional to 17,854.96, 24,640.78 and 10,781.86

Step by Step Solution

1. Step 1: Write the proportion equation
   17,854.96 : 24,640.78 = 10,781.86 : x
2. Step 2: Convert to fraction form
   17,854.96/24,640.78 = 10,781.86/x
3. Step 3: Cross multiply
   17,854.96x = 24,640.78 × 10,781.86
4. Step 4: Simplify right side
   17,854.96x = 265,673,440.25
5. Step 5: Solve for x
   x = 265,673,440.25/17,854.96
6. Step 6: Final answer
   x = 14,879.53