Finding the Fourth Proportional to 16,965.23, 23,411.41 and 9,411.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,965.23 : 23,411.41 = 9,411.89 : x
2. Step 2: Convert to fraction form
   16,965.23/23,411.41 = 9,411.89/x
3. Step 3: Cross multiply
   16,965.23x = 23,411.41 × 9,411.89
4. Step 4: Simplify right side
   16,965.23x = 220,345,650.66
5. Step 5: Solve for x
   x = 220,345,650.66/16,965.23
6. Step 6: Final answer
   x = 12,988.07