Finding the Fourth Proportional to 30,871.73, 42,603.82 and 17,442.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,871.73 : 42,603.82 = 17,442.69 : x
2. Step 2: Convert to fraction form
   30,871.73/42,603.82 = 17,442.69/x
3. Step 3: Cross multiply
   30,871.73x = 42,603.82 × 17,442.69
4. Step 4: Simplify right side
   30,871.73x = 743,125,359.47
5. Step 5: Solve for x
   x = 743,125,359.47/30,871.73
6. Step 6: Final answer
   x = 24,071.39