Finding the Fourth Proportional to 31,031.73, 42,824.22 and 16,884.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,031.73 : 42,824.22 = 16,884.57 : x
2. Step 2: Convert to fraction form
   31,031.73/42,824.22 = 16,884.57/x
3. Step 3: Cross multiply
   31,031.73x = 42,824.22 × 16,884.57
4. Step 4: Simplify right side
   31,031.73x = 723,068,540.29
5. Step 5: Solve for x
   x = 723,068,540.29/31,031.73
6. Step 6: Final answer
   x = 23,300.94