Finding the Fourth Proportional to 50,673.36, 69,930.72 and 28,317.36

Step by Step Solution

1. Step 1: Write the proportion equation
   50,673.36 : 69,930.72 = 28,317.36 : x
2. Step 2: Convert to fraction form
   50,673.36/69,930.72 = 28,317.36/x
3. Step 3: Cross multiply
   50,673.36x = 69,930.72 × 28,317.36
4. Step 4: Simplify right side
   50,673.36x = 1,980,253,373.30
5. Step 5: Solve for x
   x = 1,980,253,373.30/50,673.36
6. Step 6: Final answer
   x = 39,078.79