Finding the Fourth Proportional to 31,626.83, 47,443.89 and 8,255.09

Step by Step Solution

1. Step 1: Write the proportion equation
   31,626.83 : 47,443.89 = 8,255.09 : x
2. Step 2: Convert to fraction form
   31,626.83/47,443.89 = 8,255.09/x
3. Step 3: Cross multiply
   31,626.83x = 47,443.89 × 8,255.09
4. Step 4: Simplify right side
   31,626.83x = 391,653,581.90
5. Step 5: Solve for x
   x = 391,653,581.90/31,626.83
6. Step 6: Final answer
   x = 12,383.59