Finding the Fourth Proportional to 30,568.38, 42,144.87 and 19,794.09

Step by Step Solution

1. Step 1: Write the proportion equation
   30,568.38 : 42,144.87 = 19,794.09 : x
2. Step 2: Convert to fraction form
   30,568.38/42,144.87 = 19,794.09/x
3. Step 3: Cross multiply
   30,568.38x = 42,144.87 × 19,794.09
4. Step 4: Simplify right side
   30,568.38x = 834,219,349.82
5. Step 5: Solve for x
   x = 834,219,349.82/30,568.38
6. Step 6: Final answer
   x = 27,290.27