Finding the Fourth Proportional to 16,960.69, 25,456.56 and 8,646.67

Step by Step Solution

1. Step 1: Write the proportion equation
   16,960.69 : 25,456.56 = 8,646.67 : x
2. Step 2: Convert to fraction form
   16,960.69/25,456.56 = 8,646.67/x
3. Step 3: Cross multiply
   16,960.69x = 25,456.56 × 8,646.67
4. Step 4: Simplify right side
   16,960.69x = 220,114,473.66
5. Step 5: Solve for x
   x = 220,114,473.66/16,960.69
6. Step 6: Final answer
   x = 12,977.92