Finding the Fourth Proportional to 3,943.72, 5,922.24 and 3,786.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,943.72 : 5,922.24 = 3,786.76 : x
2. Step 2: Convert to fraction form
   3,943.72/5,922.24 = 3,786.76/x
3. Step 3: Cross multiply
   3,943.72x = 5,922.24 × 3,786.76
4. Step 4: Simplify right side
   3,943.72x = 22,426,101.54
5. Step 5: Solve for x
   x = 22,426,101.54/3,943.72
6. Step 6: Final answer
   x = 5,686.53