Finding the Fourth Proportional to 17,131.29, 23,647.71 and 11,164.42

Step by Step Solution

1. Step 1: Write the proportion equation
   17,131.29 : 23,647.71 = 11,164.42 : x
2. Step 2: Convert to fraction form
   17,131.29/23,647.71 = 11,164.42/x
3. Step 3: Cross multiply
   17,131.29x = 23,647.71 × 11,164.42
4. Step 4: Simplify right side
   17,131.29x = 264,012,966.48
5. Step 5: Solve for x
   x = 264,012,966.48/17,131.29
6. Step 6: Final answer
   x = 15,411.16