Finding the Fourth Proportional to 8,111.34, 12,170.52 and 3,954.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,111.34 : 12,170.52 = 3,954.96 : x
2. Step 2: Convert to fraction form
   8,111.34/12,170.52 = 3,954.96/x
3. Step 3: Cross multiply
   8,111.34x = 12,170.52 × 3,954.96
4. Step 4: Simplify right side
   8,111.34x = 48,133,919.78
5. Step 5: Solve for x
   x = 48,133,919.78/8,111.34
6. Step 6: Final answer
   x = 5,934.15