Finding the Fourth Proportional to 5,621.82, 7,757.89 and 3,103.87

Step by Step Solution

1. Step 1: Write the proportion equation
   5,621.82 : 7,757.89 = 3,103.87 : x
2. Step 2: Convert to fraction form
   5,621.82/7,757.89 = 3,103.87/x
3. Step 3: Cross multiply
   5,621.82x = 7,757.89 × 3,103.87
4. Step 4: Simplify right side
   5,621.82x = 24,079,493.67
5. Step 5: Solve for x
   x = 24,079,493.67/5,621.82
6. Step 6: Final answer
   x = 4,283.22