Finding the Fourth Proportional to 16,711.72, 23,062.17 and 9,259.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,711.72 : 23,062.17 = 9,259.72 : x
2. Step 2: Convert to fraction form
   16,711.72/23,062.17 = 9,259.72/x
3. Step 3: Cross multiply
   16,711.72x = 23,062.17 × 9,259.72
4. Step 4: Simplify right side
   16,711.72x = 213,549,236.79
5. Step 5: Solve for x
   x = 213,549,236.79/16,711.72
6. Step 6: Final answer
   x = 12,778.41