Finding the Fourth Proportional to 17,173.38, 23,676.59 and 12,389.33

Step by Step Solution

1. Step 1: Write the proportion equation
   17,173.38 : 23,676.59 = 12,389.33 : x
2. Step 2: Convert to fraction form
   17,173.38/23,676.59 = 12,389.33/x
3. Step 3: Cross multiply
   17,173.38x = 23,676.59 × 12,389.33
4. Step 4: Simplify right side
   17,173.38x = 293,336,906.46
5. Step 5: Solve for x
   x = 293,336,906.46/17,173.38
6. Step 6: Final answer
   x = 17,080.91