Finding the Fourth Proportional to 50,020.72, 74,947.78 and 35,198.49

Step by Step Solution

1. Step 1: Write the proportion equation
   50,020.72 : 74,947.78 = 35,198.49 : x
2. Step 2: Convert to fraction form
   50,020.72/74,947.78 = 35,198.49/x
3. Step 3: Cross multiply
   50,020.72x = 74,947.78 × 35,198.49
4. Step 4: Simplify right side
   50,020.72x = 2,638,048,508.86
5. Step 5: Solve for x
   x = 2,638,048,508.86/50,020.72
6. Step 6: Final answer
   x = 52,739.12