Finding the Fourth Proportional to 31,066.38, 42,871.59 and 16,919.22

Step by Step Solution

1. Step 1: Write the proportion equation
   31,066.38 : 42,871.59 = 16,919.22 : x
2. Step 2: Convert to fraction form
   31,066.38/42,871.59 = 16,919.22/x
3. Step 3: Cross multiply
   31,066.38x = 42,871.59 × 16,919.22
4. Step 4: Simplify right side
   31,066.38x = 725,353,862.96
5. Step 5: Solve for x
   x = 725,353,862.96/31,066.38
6. Step 6: Final answer
   x = 23,348.52