Finding the Fourth Proportional to 31,679.04, 43,721.98 and 18,067.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,679.04 : 43,721.98 = 18,067.10 : x
2. Step 2: Convert to fraction form
   31,679.04/43,721.98 = 18,067.10/x
3. Step 3: Cross multiply
   31,679.04x = 43,721.98 × 18,067.10
4. Step 4: Simplify right side
   31,679.04x = 789,929,384.86
5. Step 5: Solve for x
   x = 789,929,384.86/31,679.04
6. Step 6: Final answer
   x = 24,935.40