Finding the Fourth Proportional to 8,308.28, 12,464.85 and 3,114.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,308.28 : 12,464.85 = 3,114.56 : x
2. Step 2: Convert to fraction form
   8,308.28/12,464.85 = 3,114.56/x
3. Step 3: Cross multiply
   8,308.28x = 12,464.85 × 3,114.56
4. Step 4: Simplify right side
   8,308.28x = 38,822,566.06
5. Step 5: Solve for x
   x = 38,822,566.06/8,308.28
6. Step 6: Final answer
   x = 4,672.75