Finding the Fourth Proportional to 3,930.41, 5,864.98 and 3,581.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,930.41 : 5,864.98 = 3,581.10 : x
2. Step 2: Convert to fraction form
   3,930.41/5,864.98 = 3,581.10/x
3. Step 3: Cross multiply
   3,930.41x = 5,864.98 × 3,581.10
4. Step 4: Simplify right side
   3,930.41x = 21,003,079.88
5. Step 5: Solve for x
   x = 21,003,079.88/3,930.41
6. Step 6: Final answer
   x = 5,343.74