Finding the Fourth Proportional to 31,031.39, 42,822.05 and 16,884.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,031.39 : 42,822.05 = 16,884.24 : x
2. Step 2: Convert to fraction form
   31,031.39/42,822.05 = 16,884.24/x
3. Step 3: Cross multiply
   31,031.39x = 42,822.05 × 16,884.24
4. Step 4: Simplify right side
   31,031.39x = 723,017,685.07
5. Step 5: Solve for x
   x = 723,017,685.07/31,031.39
6. Step 6: Final answer
   x = 23,299.56