Finding the Fourth Proportional to 8,111.16, 12,162.60 and 3,951.36

Step by Step Solution

1. Step 1: Write the proportion equation
   8,111.16 : 12,162.60 = 3,951.36 : x
2. Step 2: Convert to fraction form
   8,111.16/12,162.60 = 3,951.36/x
3. Step 3: Cross multiply
   8,111.16x = 12,162.60 × 3,951.36
4. Step 4: Simplify right side
   8,111.16x = 48,058,811.14
5. Step 5: Solve for x
   x = 48,058,811.14/8,111.16
6. Step 6: Final answer
   x = 5,925.02