Finding the Fourth Proportional to 16,951.72, 23,391.20 and 9,397.97

Step by Step Solution

1. Step 1: Write the proportion equation
   16,951.72 : 23,391.20 = 9,397.97 : x
2. Step 2: Convert to fraction form
   16,951.72/23,391.20 = 9,397.97/x
3. Step 3: Cross multiply
   16,951.72x = 23,391.20 × 9,397.97
4. Step 4: Simplify right side
   16,951.72x = 219,829,748.87
5. Step 5: Solve for x
   x = 219,829,748.87/16,951.72
6. Step 6: Final answer
   x = 12,967.99