Finding the Fourth Proportional to 8,464.60, 12,693.06 and 5,500.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,464.60 : 12,693.06 = 5,500.12 : x
2. Step 2: Convert to fraction form
   8,464.60/12,693.06 = 5,500.12/x
3. Step 3: Cross multiply
   8,464.60x = 12,693.06 × 5,500.12
4. Step 4: Simplify right side
   8,464.60x = 69,813,353.17
5. Step 5: Solve for x
   x = 69,813,353.17/8,464.60
6. Step 6: Final answer
   x = 8,247.68