Finding the Fourth Proportional to 16,789.30, 23,168.32 and 9,234.41

Step by Step Solution

1. Step 1: Write the proportion equation
   16,789.30 : 23,168.32 = 9,234.41 : x
2. Step 2: Convert to fraction form
   16,789.30/23,168.32 = 9,234.41/x
3. Step 3: Cross multiply
   16,789.30x = 23,168.32 × 9,234.41
4. Step 4: Simplify right side
   16,789.30x = 213,945,701.89
5. Step 5: Solve for x
   x = 213,945,701.89/16,789.30
6. Step 6: Final answer
   x = 12,742.98