Finding the Fourth Proportional to 8,508.27, 12,757.50 and 3,308.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,508.27 : 12,757.50 = 3,308.07 : x
2. Step 2: Convert to fraction form
   8,508.27/12,757.50 = 3,308.07/x
3. Step 3: Cross multiply
   8,508.27x = 12,757.50 × 3,308.07
4. Step 4: Simplify right side
   8,508.27x = 42,202,703.03
5. Step 5: Solve for x
   x = 42,202,703.03/8,508.27
6. Step 6: Final answer
   x = 4,960.20