Finding the Fourth Proportional to 16,965.06, 23,411.92 and 9,411.88

Step by Step Solution

1. Step 1: Write the proportion equation
   16,965.06 : 23,411.92 = 9,411.88 : x
2. Step 2: Convert to fraction form
   16,965.06/23,411.92 = 9,411.88/x
3. Step 3: Cross multiply
   16,965.06x = 23,411.92 × 9,411.88
4. Step 4: Simplify right side
   16,965.06x = 220,350,181.61
5. Step 5: Solve for x
   x = 220,350,181.61/16,965.06
6. Step 6: Final answer
   x = 12,988.47