Finding the Fourth Proportional to 14,945.63, 20,624.72 and 8,231.89

Step by Step Solution

1. Step 1: Write the proportion equation
   14,945.63 : 20,624.72 = 8,231.89 : x
2. Step 2: Convert to fraction form
   14,945.63/20,624.72 = 8,231.89/x
3. Step 3: Cross multiply
   14,945.63x = 20,624.72 × 8,231.89
4. Step 4: Simplify right side
   14,945.63x = 169,780,360.57
5. Step 5: Solve for x
   x = 169,780,360.57/14,945.63
6. Step 6: Final answer
   x = 11,359.86