Finding the Fourth Proportional to 30,567.29, 42,191.82 and 19,958.54

Step by Step Solution

1. Step 1: Write the proportion equation
   30,567.29 : 42,191.82 = 19,958.54 : x
2. Step 2: Convert to fraction form
   30,567.29/42,191.82 = 19,958.54/x
3. Step 3: Cross multiply
   30,567.29x = 42,191.82 × 19,958.54
4. Step 4: Simplify right side
   30,567.29x = 842,086,916.18
5. Step 5: Solve for x
   x = 842,086,916.18/30,567.29
6. Step 6: Final answer
   x = 27,548.63