Finding the Fourth Proportional to 23,143.62, 31,936.28 and 13,582.49

Step by Step Solution

1. Step 1: Write the proportion equation
   23,143.62 : 31,936.28 = 13,582.49 : x
2. Step 2: Convert to fraction form
   23,143.62/31,936.28 = 13,582.49/x
3. Step 3: Cross multiply
   23,143.62x = 31,936.28 × 13,582.49
4. Step 4: Simplify right side
   23,143.62x = 433,773,976.14
5. Step 5: Solve for x
   x = 433,773,976.14/23,143.62
6. Step 6: Final answer
   x = 18,742.70