Finding the Fourth Proportional to 3,810, 5,251.32 and 3,144.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,810 : 5,251.32 = 3,144.72 : x
2. Step 2: Convert to fraction form
   3,810/5,251.32 = 3,144.72/x
3. Step 3: Cross multiply
   3,810x = 5,251.32 × 3,144.72
4. Step 4: Simplify right side
   3,810x = 16,513,931.03
5. Step 5: Solve for x
   x = 16,513,931.03/3,810
6. Step 6: Final answer
   x = 4,334.37