Finding the Fourth Proportional to 5,822.57, 8,039.17 and 5,450.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,822.57 : 8,039.17 = 5,450.78 : x
2. Step 2: Convert to fraction form
   5,822.57/8,039.17 = 5,450.78/x
3. Step 3: Cross multiply
   5,822.57x = 8,039.17 × 5,450.78
4. Step 4: Simplify right side
   5,822.57x = 43,819,747.05
5. Step 5: Solve for x
   x = 43,819,747.05/5,822.57
6. Step 6: Final answer
   x = 7,525.84