Finding the Fourth Proportional to 3,949.98, 5,913.45 and 3,800.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,949.98 : 5,913.45 = 3,800.22 : x
2. Step 2: Convert to fraction form
   3,949.98/5,913.45 = 3,800.22/x
3. Step 3: Cross multiply
   3,949.98x = 5,913.45 × 3,800.22
4. Step 4: Simplify right side
   3,949.98x = 22,472,410.96
5. Step 5: Solve for x
   x = 22,472,410.96/3,949.98
6. Step 6: Final answer
   x = 5,689.25