Finding the Fourth Proportional to 9,257.33, 12,774.29 and 5,480.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,257.33 : 12,774.29 = 5,480.61 : x
2. Step 2: Convert to fraction form
   9,257.33/12,774.29 = 5,480.61/x
3. Step 3: Cross multiply
   9,257.33x = 12,774.29 × 5,480.61
4. Step 4: Simplify right side
   9,257.33x = 70,010,874.11
5. Step 5: Solve for x
   x = 70,010,874.11/9,257.33
6. Step 6: Final answer
   x = 7,562.75