Finding the Fourth Proportional to 30,616.39, 42,250.24 and 17,187.29

Step by Step Solution

1. Step 1: Write the proportion equation
   30,616.39 : 42,250.24 = 17,187.29 : x
2. Step 2: Convert to fraction form
   30,616.39/42,250.24 = 17,187.29/x
3. Step 3: Cross multiply
   30,616.39x = 42,250.24 × 17,187.29
4. Step 4: Simplify right side
   30,616.39x = 726,167,333.78
5. Step 5: Solve for x
   x = 726,167,333.78/30,616.39
6. Step 6: Final answer
   x = 23,718.26