Finding the Fourth Proportional to 42,229.68, 63,362.94 and 20,058.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,229.68 : 63,362.94 = 20,058.72 : x
2. Step 2: Convert to fraction form
   42,229.68/63,362.94 = 20,058.72/x
3. Step 3: Cross multiply
   42,229.68x = 63,362.94 × 20,058.72
4. Step 4: Simplify right side
   42,229.68x = 1,270,979,471.84
5. Step 5: Solve for x
   x = 1,270,979,471.84/42,229.68
6. Step 6: Final answer
   x = 30,096.83