Finding the Fourth Proportional to 30,405.12, 41,958.72 and 17,665.68

Step by Step Solution

1. Step 1: Write the proportion equation
   30,405.12 : 41,958.72 = 17,665.68 : x
2. Step 2: Convert to fraction form
   30,405.12/41,958.72 = 17,665.68/x
3. Step 3: Cross multiply
   30,405.12x = 41,958.72 × 17,665.68
4. Step 4: Simplify right side
   30,405.12x = 741,229,320.73
5. Step 5: Solve for x
   x = 741,229,320.73/30,405.12
6. Step 6: Final answer
   x = 24,378.44