Finding the Fourth Proportional to 3,958.66, 5,938.20 and 3,377.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,958.66 : 5,938.20 = 3,377.72 : x
2. Step 2: Convert to fraction form
   3,958.66/5,938.20 = 3,377.72/x
3. Step 3: Cross multiply
   3,958.66x = 5,938.20 × 3,377.72
4. Step 4: Simplify right side
   3,958.66x = 20,057,576.90
5. Step 5: Solve for x
   x = 20,057,576.90/3,958.66
6. Step 6: Final answer
   x = 5,066.76