Finding the Fourth Proportional to 8,450.88, 12,687.82 and 4,755.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,450.88 : 12,687.82 = 4,755.72 : x
2. Step 2: Convert to fraction form
   8,450.88/12,687.82 = 4,755.72/x
3. Step 3: Cross multiply
   8,450.88x = 12,687.82 × 4,755.72
4. Step 4: Simplify right side
   8,450.88x = 60,339,719.33
5. Step 5: Solve for x
   x = 60,339,719.33/8,450.88
6. Step 6: Final answer
   x = 7,140.05