Finding the Fourth Proportional to 9,258.14, 12,775.91 and 5,280.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,258.14 : 12,775.91 = 5,280.53 : x
2. Step 2: Convert to fraction form
   9,258.14/12,775.91 = 5,280.53/x
3. Step 3: Cross multiply
   9,258.14x = 12,775.91 × 5,280.53
4. Step 4: Simplify right side
   9,258.14x = 67,463,553.46
5. Step 5: Solve for x
   x = 67,463,553.46/9,258.14
6. Step 6: Final answer
   x = 7,286.95