Finding the Fourth Proportional to 16,960.50, 23,406.21 and 9,508.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,960.50 : 23,406.21 = 9,508.50 : x
2. Step 2: Convert to fraction form
   16,960.50/23,406.21 = 9,508.50/x
3. Step 3: Cross multiply
   16,960.50x = 23,406.21 × 9,508.50
4. Step 4: Simplify right side
   16,960.50x = 222,557,947.79
5. Step 5: Solve for x
   x = 222,557,947.79/16,960.50
6. Step 6: Final answer
   x = 13,122.13