Finding the Fourth Proportional to 30,704.50, 42,372.21 and 17,456.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,704.50 : 42,372.21 = 17,456.50 : x
2. Step 2: Convert to fraction form
   30,704.50/42,372.21 = 17,456.50/x
3. Step 3: Cross multiply
   30,704.50x = 42,372.21 × 17,456.50
4. Step 4: Simplify right side
   30,704.50x = 739,670,483.87
5. Step 5: Solve for x
   x = 739,670,483.87/30,704.50
6. Step 6: Final answer
   x = 24,089.97