Finding the Fourth Proportional to 30,711.96, 42,384.72 and 17,284.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,711.96 : 42,384.72 = 17,284.56 : x
2. Step 2: Convert to fraction form
   30,711.96/42,384.72 = 17,284.56/x
3. Step 3: Cross multiply
   30,711.96x = 42,384.72 × 17,284.56
4. Step 4: Simplify right side
   30,711.96x = 732,601,235.92
5. Step 5: Solve for x
   x = 732,601,235.92/30,711.96
6. Step 6: Final answer
   x = 23,853.94