Finding the Fourth Proportional to 17,186.83, 23,673.45 and 12,142.29

Step by Step Solution

1. Step 1: Write the proportion equation
   17,186.83 : 23,673.45 = 12,142.29 : x
2. Step 2: Convert to fraction form
   17,186.83/23,673.45 = 12,142.29/x
3. Step 3: Cross multiply
   17,186.83x = 23,673.45 × 12,142.29
4. Step 4: Simplify right side
   17,186.83x = 287,449,836.78
5. Step 5: Solve for x
   x = 287,449,836.78/17,186.83
6. Step 6: Final answer
   x = 16,725.01