Finding the Fourth Proportional to 16,685.92, 23,031.69 and 9,617.05

Step by Step Solution

1. Step 1: Write the proportion equation
   16,685.92 : 23,031.69 = 9,617.05 : x
2. Step 2: Convert to fraction form
   16,685.92/23,031.69 = 9,617.05/x
3. Step 3: Cross multiply
   16,685.92x = 23,031.69 × 9,617.05
4. Step 4: Simplify right side
   16,685.92x = 221,496,799.16
5. Step 5: Solve for x
   x = 221,496,799.16/16,685.92
6. Step 6: Final answer
   x = 13,274.48