Finding the Fourth Proportional to 23,067.42, 31,833.04 and 12,457.05

Step by Step Solution

1. Step 1: Write the proportion equation
   23,067.42 : 31,833.04 = 12,457.05 : x
2. Step 2: Convert to fraction form
   23,067.42/31,833.04 = 12,457.05/x
3. Step 3: Cross multiply
   23,067.42x = 31,833.04 × 12,457.05
4. Step 4: Simplify right side
   23,067.42x = 396,545,786.50
5. Step 5: Solve for x
   x = 396,545,786.50/23,067.42
6. Step 6: Final answer
   x = 17,190.73