Finding the Fourth Proportional to 17,167.39, 23,691.33 and 9,715.39

Step by Step Solution

1. Step 1: Write the proportion equation
   17,167.39 : 23,691.33 = 9,715.39 : x
2. Step 2: Convert to fraction form
   17,167.39/23,691.33 = 9,715.39/x
3. Step 3: Cross multiply
   17,167.39x = 23,691.33 × 9,715.39
4. Step 4: Simplify right side
   17,167.39x = 230,170,510.57
5. Step 5: Solve for x
   x = 230,170,510.57/17,167.39
6. Step 6: Final answer
   x = 13,407.43