Finding the Fourth Proportional to 42,238.38, 63,309.27 and 20,020.29

Step by Step Solution

1. Step 1: Write the proportion equation
   42,238.38 : 63,309.27 = 20,020.29 : x
2. Step 2: Convert to fraction form
   42,238.38/63,309.27 = 20,020.29/x
3. Step 3: Cross multiply
   42,238.38x = 63,309.27 × 20,020.29
4. Step 4: Simplify right side
   42,238.38x = 1,267,469,945.09
5. Step 5: Solve for x
   x = 1,267,469,945.09/42,238.38
6. Step 6: Final answer
   x = 30,007.54