Finding the Fourth Proportional to 16,960.27, 23,404.35 and 9,406.90

Step by Step Solution

1. Step 1: Write the proportion equation
   16,960.27 : 23,404.35 = 9,406.90 : x
2. Step 2: Convert to fraction form
   16,960.27/23,404.35 = 9,406.90/x
3. Step 3: Cross multiply
   16,960.27x = 23,404.35 × 9,406.90
4. Step 4: Simplify right side
   16,960.27x = 220,162,380.02
5. Step 5: Solve for x
   x = 220,162,380.02/16,960.27
6. Step 6: Final answer
   x = 12,981.07