Finding the Fourth Proportional to 17,149.12, 23,676.42 and 13,162.60

Step by Step Solution

1. Step 1: Write the proportion equation
   17,149.12 : 23,676.42 = 13,162.60 : x
2. Step 2: Convert to fraction form
   17,149.12/23,676.42 = 13,162.60/x
3. Step 3: Cross multiply
   17,149.12x = 23,676.42 × 13,162.60
4. Step 4: Simplify right side
   17,149.12x = 311,643,245.89
5. Step 5: Solve for x
   x = 311,643,245.89/17,149.12
6. Step 6: Final answer
   x = 18,172.55