Finding the Fourth Proportional to 31,294.38, 43,178.52 and 18,550.54

Step by Step Solution

1. Step 1: Write the proportion equation
   31,294.38 : 43,178.52 = 18,550.54 : x
2. Step 2: Convert to fraction form
   31,294.38/43,178.52 = 18,550.54/x
3. Step 3: Cross multiply
   31,294.38x = 43,178.52 × 18,550.54
4. Step 4: Simplify right side
   31,294.38x = 800,985,003.03
5. Step 5: Solve for x
   x = 800,985,003.03/31,294.38
6. Step 6: Final answer
   x = 25,595.17