Finding the Fourth Proportional to 31,067.04, 42,873 and 16,919.87

Step by Step Solution

1. Step 1: Write the proportion equation
   31,067.04 : 42,873 = 16,919.87 : x
2. Step 2: Convert to fraction form
   31,067.04/42,873 = 16,919.87/x
3. Step 3: Cross multiply
   31,067.04x = 42,873 × 16,919.87
4. Step 4: Simplify right side
   31,067.04x = 725,405,586.51
5. Step 5: Solve for x
   x = 725,405,586.51/31,067.04
6. Step 6: Final answer
   x = 23,349.68