Finding the Fourth Proportional to 50,550.39, 69,760.20 and 27,890.31

Step by Step Solution

1. Step 1: Write the proportion equation
   50,550.39 : 69,760.20 = 27,890.31 : x
2. Step 2: Convert to fraction form
   50,550.39/69,760.20 = 27,890.31/x
3. Step 3: Cross multiply
   50,550.39x = 69,760.20 × 27,890.31
4. Step 4: Simplify right side
   50,550.39x = 1,945,633,603.66
5. Step 5: Solve for x
   x = 1,945,633,603.66/50,550.39
6. Step 6: Final answer
   x = 38,488.99