Finding the Fourth Proportional to 3,963.81, 5,469.72 and 3,542.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,963.81 : 5,469.72 = 3,542.82 : x
2. Step 2: Convert to fraction form
   3,963.81/5,469.72 = 3,542.82/x
3. Step 3: Cross multiply
   3,963.81x = 5,469.72 × 3,542.82
4. Step 4: Simplify right side
   3,963.81x = 19,378,233.41
5. Step 5: Solve for x
   x = 19,378,233.41/3,963.81
6. Step 6: Final answer
   x = 4,888.79