Finding the Fourth Proportional to 17,142.02, 23,649 and 11,171.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,142.02 : 23,649 = 11,171.50 : x
2. Step 2: Convert to fraction form
   17,142.02/23,649 = 11,171.50/x
3. Step 3: Cross multiply
   17,142.02x = 23,649 × 11,171.50
4. Step 4: Simplify right side
   17,142.02x = 264,194,803.50
5. Step 5: Solve for x
   x = 264,194,803.50/17,142.02
6. Step 6: Final answer
   x = 15,412.12