Finding the Fourth Proportional to 8,258.58, 12,393.51 and 3,328.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,258.58 : 12,393.51 = 3,328.61 : x
2. Step 2: Convert to fraction form
   8,258.58/12,393.51 = 3,328.61/x
3. Step 3: Cross multiply
   8,258.58x = 12,393.51 × 3,328.61
4. Step 4: Simplify right side
   8,258.58x = 41,253,099.35
5. Step 5: Solve for x
   x = 41,253,099.35/8,258.58
6. Step 6: Final answer
   x = 4,995.18