Finding the Fourth Proportional to 23,103.05, 31,881.49 and 13,031.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,103.05 : 31,881.49 = 13,031.34 : x
2. Step 2: Convert to fraction form
   23,103.05/31,881.49 = 13,031.34/x
3. Step 3: Cross multiply
   23,103.05x = 31,881.49 × 13,031.34
4. Step 4: Simplify right side
   23,103.05x = 415,458,503.32
5. Step 5: Solve for x
   x = 415,458,503.32/23,103.05
6. Step 6: Final answer
   x = 17,982.85