Finding the Fourth Proportional to 8,105.34, 12,149.10 and 3,174.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,105.34 : 12,149.10 = 3,174.06 : x
2. Step 2: Convert to fraction form
   8,105.34/12,149.10 = 3,174.06/x
3. Step 3: Cross multiply
   8,105.34x = 12,149.10 × 3,174.06
4. Step 4: Simplify right side
   8,105.34x = 38,561,972.35
5. Step 5: Solve for x
   x = 38,561,972.35/8,105.34
6. Step 6: Final answer
   x = 4,757.60