Finding the Fourth Proportional to 5,581.04, 8,372.96 and 3,940.79

Step by Step Solution

1. Step 1: Write the proportion equation
   5,581.04 : 8,372.96 = 3,940.79 : x
2. Step 2: Convert to fraction form
   5,581.04/8,372.96 = 3,940.79/x
3. Step 3: Cross multiply
   5,581.04x = 8,372.96 × 3,940.79
4. Step 4: Simplify right side
   5,581.04x = 32,996,077.04
5. Step 5: Solve for x
   x = 32,996,077.04/5,581.04
6. Step 6: Final answer
   x = 5,912.17