Finding the Fourth Proportional to 8,323.92, 12,478.50 and 3,397.68

Step by Step Solution

1. Step 1: Write the proportion equation
   8,323.92 : 12,478.50 = 3,397.68 : x
2. Step 2: Convert to fraction form
   8,323.92/12,478.50 = 3,397.68/x
3. Step 3: Cross multiply
   8,323.92x = 12,478.50 × 3,397.68
4. Step 4: Simplify right side
   8,323.92x = 42,397,949.88
5. Step 5: Solve for x
   x = 42,397,949.88/8,323.92
6. Step 6: Final answer
   x = 5,093.51