Finding the Fourth Proportional to 31,022.28, 42,809.82 and 16,874.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,022.28 : 42,809.82 = 16,874.76 : x
2. Step 2: Convert to fraction form
   31,022.28/42,809.82 = 16,874.76/x
3. Step 3: Cross multiply
   31,022.28x = 42,809.82 × 16,874.76
4. Step 4: Simplify right side
   31,022.28x = 722,405,438.14
5. Step 5: Solve for x
   x = 722,405,438.14/31,022.28
6. Step 6: Final answer
   x = 23,286.66