Finding the Fourth Proportional to 9,258.21, 12,775.55 and 5,224.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,258.21 : 12,775.55 = 5,224.82 : x
2. Step 2: Convert to fraction form
   9,258.21/12,775.55 = 5,224.82/x
3. Step 3: Cross multiply
   9,258.21x = 12,775.55 × 5,224.82
4. Step 4: Simplify right side
   9,258.21x = 66,749,859.15
5. Step 5: Solve for x
   x = 66,749,859.15/9,258.21
6. Step 6: Final answer
   x = 7,209.80