Finding the Fourth Proportional to 50,396.96, 69,550.67 and 28,890.28

Step by Step Solution

1. Step 1: Write the proportion equation
   50,396.96 : 69,550.67 = 28,890.28 : x
2. Step 2: Convert to fraction form
   50,396.96/69,550.67 = 28,890.28/x
3. Step 3: Cross multiply
   50,396.96x = 69,550.67 × 28,890.28
4. Step 4: Simplify right side
   50,396.96x = 2,009,338,330.49
5. Step 5: Solve for x
   x = 2,009,338,330.49/50,396.96
6. Step 6: Final answer
   x = 39,870.23