Finding the Fourth Proportional to 31,031.43, 42,822.13 and 16,884.27

Step by Step Solution

1. Step 1: Write the proportion equation
   31,031.43 : 42,822.13 = 16,884.27 : x
2. Step 2: Convert to fraction form
   31,031.43/42,822.13 = 16,884.27/x
3. Step 3: Cross multiply
   31,031.43x = 42,822.13 × 16,884.27
4. Step 4: Simplify right side
   31,031.43x = 723,020,404.90
5. Step 5: Solve for x
   x = 723,020,404.90/31,031.43
6. Step 6: Final answer
   x = 23,299.62