Finding the Fourth Proportional to 31,104.28, 42,922.82 and 16,956.84

Step by Step Solution

1. Step 1: Write the proportion equation
   31,104.28 : 42,922.82 = 16,956.84 : x
2. Step 2: Convert to fraction form
   31,104.28/42,922.82 = 16,956.84/x
3. Step 3: Cross multiply
   31,104.28x = 42,922.82 × 16,956.84
4. Step 4: Simplify right side
   31,104.28x = 727,835,391.09
5. Step 5: Solve for x
   x = 727,835,391.09/31,104.28
6. Step 6: Final answer
   x = 23,399.85