Finding the Fourth Proportional to 30,768.71, 42,471.35 and 18,025.98

Step by Step Solution

1. Step 1: Write the proportion equation
   30,768.71 : 42,471.35 = 18,025.98 : x
2. Step 2: Convert to fraction form
   30,768.71/42,471.35 = 18,025.98/x
3. Step 3: Cross multiply
   30,768.71x = 42,471.35 × 18,025.98
4. Step 4: Simplify right side
   30,768.71x = 765,587,615.54
5. Step 5: Solve for x
   x = 765,587,615.54/30,768.71
6. Step 6: Final answer
   x = 24,882.02