Finding the Fourth Proportional to 9,255.06, 12,772.32 and 5,275.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,255.06 : 12,772.32 = 5,275.53 : x
2. Step 2: Convert to fraction form
   9,255.06/12,772.32 = 5,275.53/x
3. Step 3: Cross multiply
   9,255.06x = 12,772.32 × 5,275.53
4. Step 4: Simplify right side
   9,255.06x = 67,380,757.33
5. Step 5: Solve for x
   x = 67,380,757.33/9,255.06
6. Step 6: Final answer
   x = 7,280.42