Finding the Fourth Proportional to 3,099.03, 4,276.56 and 2,216.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,099.03 : 4,276.56 = 2,216.31 : x
2. Step 2: Convert to fraction form
   3,099.03/4,276.56 = 2,216.31/x
3. Step 3: Cross multiply
   3,099.03x = 4,276.56 × 2,216.31
4. Step 4: Simplify right side
   3,099.03x = 9,478,182.69
5. Step 5: Solve for x
   x = 9,478,182.69/3,099.03
6. Step 6: Final answer
   x = 3,058.44