Finding the Fourth Proportional to 3,979.96, 5,950.96 and 3,631.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,979.96 : 5,950.96 = 3,631.42 : x
2. Step 2: Convert to fraction form
   3,979.96/5,950.96 = 3,631.42/x
3. Step 3: Cross multiply
   3,979.96x = 5,950.96 × 3,631.42
4. Step 4: Simplify right side
   3,979.96x = 21,610,435.16
5. Step 5: Solve for x
   x = 21,610,435.16/3,979.96
6. Step 6: Final answer
   x = 5,429.81