Finding the Fourth Proportional to 3,901.72, 5,863.74 and 3,756.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,901.72 : 5,863.74 = 3,756.28 : x
2. Step 2: Convert to fraction form
   3,901.72/5,863.74 = 3,756.28/x
3. Step 3: Cross multiply
   3,901.72x = 5,863.74 × 3,756.28
4. Step 4: Simplify right side
   3,901.72x = 22,025,849.29
5. Step 5: Solve for x
   x = 22,025,849.29/3,901.72
6. Step 6: Final answer
   x = 5,645.16