Finding the Fourth Proportional to 4,941.40, 7,417.89 and 3,902.10

Step by Step Solution

1. Step 1: Write the proportion equation
   4,941.40 : 7,417.89 = 3,902.10 : x
2. Step 2: Convert to fraction form
   4,941.40/7,417.89 = 3,902.10/x
3. Step 3: Cross multiply
   4,941.40x = 7,417.89 × 3,902.10
4. Step 4: Simplify right side
   4,941.40x = 28,945,348.57
5. Step 5: Solve for x
   x = 28,945,348.57/4,941.40
6. Step 6: Final answer
   x = 5,857.72