Finding the Fourth Proportional to 3,943.82, 5,442.72 and 2,175.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,943.82 : 5,442.72 = 2,175.42 : x
2. Step 2: Convert to fraction form
   3,943.82/5,442.72 = 2,175.42/x
3. Step 3: Cross multiply
   3,943.82x = 5,442.72 × 2,175.42
4. Step 4: Simplify right side
   3,943.82x = 11,840,201.94
5. Step 5: Solve for x
   x = 11,840,201.94/3,943.82
6. Step 6: Final answer
   x = 3,002.22