Finding the Fourth Proportional to 16,960.34, 23,405.28 and 9,407.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,960.34 : 23,405.28 = 9,407.82 : x
2. Step 2: Convert to fraction form
   16,960.34/23,405.28 = 9,407.82/x
3. Step 3: Cross multiply
   16,960.34x = 23,405.28 × 9,407.82
4. Step 4: Simplify right side
   16,960.34x = 220,192,661.29
5. Step 5: Solve for x
   x = 220,192,661.29/16,960.34
6. Step 6: Final answer
   x = 12,982.80