Finding the Fourth Proportional to 42,519.72, 63,738.20 and 20,327.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,519.72 : 63,738.20 = 20,327.34 : x
2. Step 2: Convert to fraction form
   42,519.72/63,738.20 = 20,327.34/x
3. Step 3: Cross multiply
   42,519.72x = 63,738.20 × 20,327.34
4. Step 4: Simplify right side
   42,519.72x = 1,295,628,062.39
5. Step 5: Solve for x
   x = 1,295,628,062.39/42,519.72
6. Step 6: Final answer
   x = 30,471.23