Finding the Fourth Proportional to 16,960.52, 23,404.40 and 9,406.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,960.52 : 23,404.40 = 9,406.60 : x
2. Step 2: Convert to fraction form
   16,960.52/23,404.40 = 9,406.60/x
3. Step 3: Cross multiply
   16,960.52x = 23,404.40 × 9,406.60
4. Step 4: Simplify right side
   16,960.52x = 220,155,829.04
5. Step 5: Solve for x
   x = 220,155,829.04/16,960.52
6. Step 6: Final answer
   x = 12,980.49