Finding the Fourth Proportional to 23,103.59, 31,881.62 and 13,031.43

Step by Step Solution

1. Step 1: Write the proportion equation
   23,103.59 : 31,881.62 = 13,031.43 : x
2. Step 2: Convert to fraction form
   23,103.59/31,881.62 = 13,031.43/x
3. Step 3: Cross multiply
   23,103.59x = 31,881.62 × 13,031.43
4. Step 4: Simplify right side
   23,103.59x = 415,462,939.91
5. Step 5: Solve for x
   x = 415,462,939.91/23,103.59
6. Step 6: Final answer
   x = 17,982.62