Finding the Fourth Proportional to 30,710.71, 42,380.28 and 17,281.96

Step by Step Solution

1. Step 1: Write the proportion equation
   30,710.71 : 42,380.28 = 17,281.96 : x
2. Step 2: Convert to fraction form
   30,710.71/42,380.28 = 17,281.96/x
3. Step 3: Cross multiply
   30,710.71x = 42,380.28 × 17,281.96
4. Step 4: Simplify right side
   30,710.71x = 732,414,091.85
5. Step 5: Solve for x
   x = 732,414,091.85/30,710.71
6. Step 6: Final answer
   x = 23,848.82