Finding the Fourth Proportional to 23,086.71, 31,858.74 and 13,017.24

Step by Step Solution

1. Step 1: Write the proportion equation
   23,086.71 : 31,858.74 = 13,017.24 : x
2. Step 2: Convert to fraction form
   23,086.71/31,858.74 = 13,017.24/x
3. Step 3: Cross multiply
   23,086.71x = 31,858.74 × 13,017.24
4. Step 4: Simplify right side
   23,086.71x = 414,712,864.68
5. Step 5: Solve for x
   x = 414,712,864.68/23,086.71
6. Step 6: Final answer
   x = 17,963.27