Finding the Fourth Proportional to 8,268.49, 12,399.49 and 3,648.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,268.49 : 12,399.49 = 3,648.25 : x
2. Step 2: Convert to fraction form
   8,268.49/12,399.49 = 3,648.25/x
3. Step 3: Cross multiply
   8,268.49x = 12,399.49 × 3,648.25
4. Step 4: Simplify right side
   8,268.49x = 45,236,439.39
5. Step 5: Solve for x
   x = 45,236,439.39/8,268.49
6. Step 6: Final answer
   x = 5,470.94