Finding the Fourth Proportional to 8,103.24, 12,148.38 and 3,489.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,103.24 : 12,148.38 = 3,489.48 : x
2. Step 2: Convert to fraction form
   8,103.24/12,148.38 = 3,489.48/x
3. Step 3: Cross multiply
   8,103.24x = 12,148.38 × 3,489.48
4. Step 4: Simplify right side
   8,103.24x = 42,391,529.04
5. Step 5: Solve for x
   x = 42,391,529.04/8,103.24
6. Step 6: Final answer
   x = 5,231.43