Finding the Fourth Proportional to 8,101.42, 12,144.87 and 3,174.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,101.42 : 12,144.87 = 3,174.49 : x
2. Step 2: Convert to fraction form
   8,101.42/12,144.87 = 3,174.49/x
3. Step 3: Cross multiply
   8,101.42x = 12,144.87 × 3,174.49
4. Step 4: Simplify right side
   8,101.42x = 38,553,783.55
5. Step 5: Solve for x
   x = 38,553,783.55/8,101.42
6. Step 6: Final answer
   x = 4,758.89