Finding the Fourth Proportional to 8,115.41, 12,168.38 and 3,950.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,115.41 : 12,168.38 = 3,950.15 : x
2. Step 2: Convert to fraction form
   8,115.41/12,168.38 = 3,950.15/x
3. Step 3: Cross multiply
   8,115.41x = 12,168.38 × 3,950.15
4. Step 4: Simplify right side
   8,115.41x = 48,066,906.51
5. Step 5: Solve for x
   x = 48,066,906.51/8,115.41
6. Step 6: Final answer
   x = 5,922.92