Finding the Fourth Proportional to 30,871.13, 42,603.98 and 17,442.03

Step by Step Solution

1. Step 1: Write the proportion equation
   30,871.13 : 42,603.98 = 17,442.03 : x
2. Step 2: Convert to fraction form
   30,871.13/42,603.98 = 17,442.03/x
3. Step 3: Cross multiply
   30,871.13x = 42,603.98 × 17,442.03
4. Step 4: Simplify right side
   30,871.13x = 743,099,969.83
5. Step 5: Solve for x
   x = 743,099,969.83/30,871.13
6. Step 6: Final answer
   x = 24,071.04