Finding the Fourth Proportional to 30,020.78, 41,434.39 and 19,793.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,020.78 : 41,434.39 = 19,793.82 : x
2. Step 2: Convert to fraction form
   30,020.78/41,434.39 = 19,793.82/x
3. Step 3: Cross multiply
   30,020.78x = 41,434.39 × 19,793.82
4. Step 4: Simplify right side
   30,020.78x = 820,144,693.18
5. Step 5: Solve for x
   x = 820,144,693.18/30,020.78
6. Step 6: Final answer
   x = 27,319.24