Finding the Fourth Proportional to 31,624.83, 47,440.89 and 8,253.09

Step by Step Solution

1. Step 1: Write the proportion equation
   31,624.83 : 47,440.89 = 8,253.09 : x
2. Step 2: Convert to fraction form
   31,624.83/47,440.89 = 8,253.09/x
3. Step 3: Cross multiply
   31,624.83x = 47,440.89 × 8,253.09
4. Step 4: Simplify right side
   31,624.83x = 391,533,934.85
5. Step 5: Solve for x
   x = 391,533,934.85/31,624.83
6. Step 6: Final answer
   x = 12,380.59