Finding the Fourth Proportional to 16,717.96, 25,063.98 and 7,939.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,717.96 : 25,063.98 = 7,939.72 : x
2. Step 2: Convert to fraction form
   16,717.96/25,063.98 = 7,939.72/x
3. Step 3: Cross multiply
   16,717.96x = 25,063.98 × 7,939.72
4. Step 4: Simplify right side
   16,717.96x = 199,000,983.29
5. Step 5: Solve for x
   x = 199,000,983.29/16,717.96
6. Step 6: Final answer
   x = 11,903.43