Finding the Fourth Proportional to 12,261.33, 16,925.72 and 8,287.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,261.33 : 16,925.72 = 8,287.82 : x
2. Step 2: Convert to fraction form
   12,261.33/16,925.72 = 8,287.82/x
3. Step 3: Cross multiply
   12,261.33x = 16,925.72 × 8,287.82
4. Step 4: Simplify right side
   12,261.33x = 140,277,289.87
5. Step 5: Solve for x
   x = 140,277,289.87/12,261.33
6. Step 6: Final answer
   x = 11,440.63