Finding the Fourth Proportional to 8,333.05, 12,426.07 and 8,258.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,333.05 : 12,426.07 = 8,258.05 : x
2. Step 2: Convert to fraction form
   8,333.05/12,426.07 = 8,258.05/x
3. Step 3: Cross multiply
   8,333.05x = 12,426.07 × 8,258.05
4. Step 4: Simplify right side
   8,333.05x = 102,615,003.94
5. Step 5: Solve for x
   x = 102,615,003.94/8,333.05
6. Step 6: Final answer
   x = 12,314.22