Finding the Fourth Proportional to 8,854.68, 12,212.46 and 8,258.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,854.68 : 12,212.46 = 8,258.52 : x
2. Step 2: Convert to fraction form
   8,854.68/12,212.46 = 8,258.52/x
3. Step 3: Cross multiply
   8,854.68x = 12,212.46 × 8,258.52
4. Step 4: Simplify right side
   8,854.68x = 100,856,845.16
5. Step 5: Solve for x
   x = 100,856,845.16/8,854.68
6. Step 6: Final answer
   x = 11,390.23