Finding the Fourth Proportional to 9,249.39, 12,760.13 and 5,710.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,249.39 : 12,760.13 = 5,710.50 : x
2. Step 2: Convert to fraction form
   9,249.39/12,760.13 = 5,710.50/x
3. Step 3: Cross multiply
   9,249.39x = 12,760.13 × 5,710.50
4. Step 4: Simplify right side
   9,249.39x = 72,866,736.64
5. Step 5: Solve for x
   x = 72,866,736.64/9,249.39
6. Step 6: Final answer
   x = 7,878.00