Finding the Fourth Proportional to 8,168.86, 12,257.34 and 3,238.39

Step by Step Solution

1. Step 1: Write the proportion equation
   8,168.86 : 12,257.34 = 3,238.39 : x
2. Step 2: Convert to fraction form
   8,168.86/12,257.34 = 3,238.39/x
3. Step 3: Cross multiply
   8,168.86x = 12,257.34 × 3,238.39
4. Step 4: Simplify right side
   8,168.86x = 39,694,047.28
5. Step 5: Solve for x
   x = 39,694,047.28/8,168.86
6. Step 6: Final answer
   x = 4,859.19