Finding the Fourth Proportional to 16,716.72, 25,070.76 and 7,934.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,716.72 : 25,070.76 = 7,934.16 : x
2. Step 2: Convert to fraction form
   16,716.72/25,070.76 = 7,934.16/x
3. Step 3: Cross multiply
   16,716.72x = 25,070.76 × 7,934.16
4. Step 4: Simplify right side
   16,716.72x = 198,915,421.16
5. Step 5: Solve for x
   x = 198,915,421.16/16,716.72
6. Step 6: Final answer
   x = 11,899.19