Finding the Fourth Proportional to 16,864.34, 23,273.54 and 9,696.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,864.34 : 23,273.54 = 9,696.57 : x
2. Step 2: Convert to fraction form
   16,864.34/23,273.54 = 9,696.57/x
3. Step 3: Cross multiply
   16,864.34x = 23,273.54 × 9,696.57
4. Step 4: Simplify right side
   16,864.34x = 225,673,461.27
5. Step 5: Solve for x
   x = 225,673,461.27/16,864.34
6. Step 6: Final answer
   x = 13,381.70