Finding the Fourth Proportional to 16,712.72, 23,063.55 and 9,260.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,712.72 : 23,063.55 = 9,260.72 : x
2. Step 2: Convert to fraction form
   16,712.72/23,063.55 = 9,260.72/x
3. Step 3: Cross multiply
   16,712.72x = 23,063.55 × 9,260.72
4. Step 4: Simplify right side
   16,712.72x = 213,585,078.76
5. Step 5: Solve for x
   x = 213,585,078.76/16,712.72
6. Step 6: Final answer
   x = 12,779.79