Finding the Fourth Proportional to 12,850.86, 17,728.82 and 8,651.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,850.86 : 17,728.82 = 8,651.82 : x
2. Step 2: Convert to fraction form
   12,850.86/17,728.82 = 8,651.82/x
3. Step 3: Cross multiply
   12,850.86x = 17,728.82 × 8,651.82
4. Step 4: Simplify right side
   12,850.86x = 153,386,559.45
5. Step 5: Solve for x
   x = 153,386,559.45/12,850.86
6. Step 6: Final answer
   x = 11,935.90