Finding the Fourth Proportional to 8,322.16, 12,483.03 and 3,391.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,322.16 : 12,483.03 = 3,391.78 : x
2. Step 2: Convert to fraction form
   8,322.16/12,483.03 = 3,391.78/x
3. Step 3: Cross multiply
   8,322.16x = 12,483.03 × 3,391.78
4. Step 4: Simplify right side
   8,322.16x = 42,339,691.49
5. Step 5: Solve for x
   x = 42,339,691.49/8,322.16
6. Step 6: Final answer
   x = 5,087.58