Finding the Fourth Proportional to 30,704.75, 42,372.56 and 17,456.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,704.75 : 42,372.56 = 17,456.75 : x
2. Step 2: Convert to fraction form
   30,704.75/42,372.56 = 17,456.75/x
3. Step 3: Cross multiply
   30,704.75x = 42,372.56 × 17,456.75
4. Step 4: Simplify right side
   30,704.75x = 739,687,186.78
5. Step 5: Solve for x
   x = 739,687,186.78/30,704.75
6. Step 6: Final answer
   x = 24,090.32