Finding the Fourth Proportional to 30,969.12, 42,738.17 and 17,540.18

Step by Step Solution

1. Step 1: Write the proportion equation
   30,969.12 : 42,738.17 = 17,540.18 : x
2. Step 2: Convert to fraction form
   30,969.12/42,738.17 = 17,540.18/x
3. Step 3: Cross multiply
   30,969.12x = 42,738.17 × 17,540.18
4. Step 4: Simplify right side
   30,969.12x = 749,635,194.67
5. Step 5: Solve for x
   x = 749,635,194.67/30,969.12
6. Step 6: Final answer
   x = 24,205.89