Finding the Fourth Proportional to 30,726.27, 42,399.57 and 17,113.29

Step by Step Solution

1. Step 1: Write the proportion equation
   30,726.27 : 42,399.57 = 17,113.29 : x
2. Step 2: Convert to fraction form
   30,726.27/42,399.57 = 17,113.29/x
3. Step 3: Cross multiply
   30,726.27x = 42,399.57 × 17,113.29
4. Step 4: Simplify right side
   30,726.27x = 725,596,137.29
5. Step 5: Solve for x
   x = 725,596,137.29/30,726.27
6. Step 6: Final answer
   x = 23,614.85