Finding the Fourth Proportional to 3,963.99, 5,464.02 and 3,123.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,963.99 : 5,464.02 = 3,123.42 : x
2. Step 2: Convert to fraction form
   3,963.99/5,464.02 = 3,123.42/x
3. Step 3: Cross multiply
   3,963.99x = 5,464.02 × 3,123.42
4. Step 4: Simplify right side
   3,963.99x = 17,066,429.35
5. Step 5: Solve for x
   x = 17,066,429.35/3,963.99
6. Step 6: Final answer
   x = 4,305.37