Finding the Fourth Proportional to 30,603.42, 42,233.48 and 17,175.70

Step by Step Solution

1. Step 1: Write the proportion equation
   30,603.42 : 42,233.48 = 17,175.70 : x
2. Step 2: Convert to fraction form
   30,603.42/42,233.48 = 17,175.70/x
3. Step 3: Cross multiply
   30,603.42x = 42,233.48 × 17,175.70
4. Step 4: Simplify right side
   30,603.42x = 725,389,327.89
5. Step 5: Solve for x
   x = 725,389,327.89/30,603.42
6. Step 6: Final answer
   x = 23,702.88