Finding the Fourth Proportional to 9,249.57, 12,759.21 and 5,710.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,249.57 : 12,759.21 = 5,710.26 : x
2. Step 2: Convert to fraction form
   9,249.57/12,759.21 = 5,710.26/x
3. Step 3: Cross multiply
   9,249.57x = 12,759.21 × 5,710.26
4. Step 4: Simplify right side
   9,249.57x = 72,858,406.49
5. Step 5: Solve for x
   x = 72,858,406.49/9,249.57
6. Step 6: Final answer
   x = 7,876.95