Finding the Fourth Proportional to 30,938.69, 42,695.57 and 17,509.97

Step by Step Solution

1. Step 1: Write the proportion equation
   30,938.69 : 42,695.57 = 17,509.97 : x
2. Step 2: Convert to fraction form
   30,938.69/42,695.57 = 17,509.97/x
3. Step 3: Cross multiply
   30,938.69x = 42,695.57 × 17,509.97
4. Step 4: Simplify right side
   30,938.69x = 747,598,149.83
5. Step 5: Solve for x
   x = 747,598,149.83/30,938.69
6. Step 6: Final answer
   x = 24,163.86