Finding the Fourth Proportional to 8,238.50, 12,359.31 and 3,308.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,238.50 : 12,359.31 = 3,308.53 : x
2. Step 2: Convert to fraction form
   8,238.50/12,359.31 = 3,308.53/x
3. Step 3: Cross multiply
   8,238.50x = 12,359.31 × 3,308.53
4. Step 4: Simplify right side
   8,238.50x = 40,891,069.58
5. Step 5: Solve for x
   x = 40,891,069.58/8,238.50
6. Step 6: Final answer
   x = 4,963.41