Finding the Fourth Proportional to 31,404.72, 47,107.04 and 8,031.16

Step by Step Solution

1. Step 1: Write the proportion equation
   31,404.72 : 47,107.04 = 8,031.16 : x
2. Step 2: Convert to fraction form
   31,404.72/47,107.04 = 8,031.16/x
3. Step 3: Cross multiply
   31,404.72x = 47,107.04 × 8,031.16
4. Step 4: Simplify right side
   31,404.72x = 378,324,175.37
5. Step 5: Solve for x
   x = 378,324,175.37/31,404.72
6. Step 6: Final answer
   x = 12,046.73