Finding the Fourth Proportional to 31,066.44, 42,871.50 and 16,919.16

Step by Step Solution

1. Step 1: Write the proportion equation
   31,066.44 : 42,871.50 = 16,919.16 : x
2. Step 2: Convert to fraction form
   31,066.44/42,871.50 = 16,919.16/x
3. Step 3: Cross multiply
   31,066.44x = 42,871.50 × 16,919.16
4. Step 4: Simplify right side
   31,066.44x = 725,349,767.94
5. Step 5: Solve for x
   x = 725,349,767.94/31,066.44
6. Step 6: Final answer
   x = 23,348.34