Finding the Fourth Proportional to 8,119.50, 12,170.52 and 3,438.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,119.50 : 12,170.52 = 3,438.42 : x
2. Step 2: Convert to fraction form
   8,119.50/12,170.52 = 3,438.42/x
3. Step 3: Cross multiply
   8,119.50x = 12,170.52 × 3,438.42
4. Step 4: Simplify right side
   8,119.50x = 41,847,359.38
5. Step 5: Solve for x
   x = 41,847,359.38/8,119.50
6. Step 6: Final answer
   x = 5,153.93