Finding the Fourth Proportional to 14,945.99, 20,626.39 and 8,231.61

Step by Step Solution

1. Step 1: Write the proportion equation
   14,945.99 : 20,626.39 = 8,231.61 : x
2. Step 2: Convert to fraction form
   14,945.99/20,626.39 = 8,231.61/x
3. Step 3: Cross multiply
   14,945.99x = 20,626.39 × 8,231.61
4. Step 4: Simplify right side
   14,945.99x = 169,788,424.89
5. Step 5: Solve for x
   x = 169,788,424.89/14,945.99
6. Step 6: Final answer
   x = 11,360.14