Finding the Fourth Proportional to 30,872.53, 42,603.69 and 17,443.54

Step by Step Solution

1. Step 1: Write the proportion equation
   30,872.53 : 42,603.69 = 17,443.54 : x
2. Step 2: Convert to fraction form
   30,872.53/42,603.69 = 17,443.54/x
3. Step 3: Cross multiply
   30,872.53x = 42,603.69 × 17,443.54
4. Step 4: Simplify right side
   30,872.53x = 743,159,170.66
5. Step 5: Solve for x
   x = 743,159,170.66/30,872.53
6. Step 6: Final answer
   x = 24,071.86