Finding the Fourth Proportional to 8,785.50, 12,132.06 and 5,647.14

Step by Step Solution

1. Step 1: Write the proportion equation
   8,785.50 : 12,132.06 = 5,647.14 : x
2. Step 2: Convert to fraction form
   8,785.50/12,132.06 = 5,647.14/x
3. Step 3: Cross multiply
   8,785.50x = 12,132.06 × 5,647.14
4. Step 4: Simplify right side
   8,785.50x = 68,511,441.31
5. Step 5: Solve for x
   x = 68,511,441.31/8,785.50
6. Step 6: Final answer
   x = 7,798.24