Finding the Fourth Proportional to 8,308.68, 12,459.48 and 2,760.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,308.68 : 12,459.48 = 2,760.54 : x
2. Step 2: Convert to fraction form
   8,308.68/12,459.48 = 2,760.54/x
3. Step 3: Cross multiply
   8,308.68x = 12,459.48 × 2,760.54
4. Step 4: Simplify right side
   8,308.68x = 34,394,892.92
5. Step 5: Solve for x
   x = 34,394,892.92/8,308.68
6. Step 6: Final answer
   x = 4,139.63