Finding the Fourth Proportional to 42,362.24, 63,564.78 and 20,171.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,362.24 : 63,564.78 = 20,171.48 : x
2. Step 2: Convert to fraction form
   42,362.24/63,564.78 = 20,171.48/x
3. Step 3: Cross multiply
   42,362.24x = 63,564.78 × 20,171.48
4. Step 4: Simplify right side
   42,362.24x = 1,282,195,688.47
5. Step 5: Solve for x
   x = 1,282,195,688.47/42,362.24
6. Step 6: Final answer
   x = 30,267.42