Finding the Fourth Proportional to 5,940.72, 8,913.11 and 3,974.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,940.72 : 8,913.11 = 3,974.31 : x
2. Step 2: Convert to fraction form
   5,940.72/8,913.11 = 3,974.31/x
3. Step 3: Cross multiply
   5,940.72x = 8,913.11 × 3,974.31
4. Step 4: Simplify right side
   5,940.72x = 35,423,442.33
5. Step 5: Solve for x
   x = 35,423,442.33/5,940.72
6. Step 6: Final answer
   x = 5,962.82