Finding the Fourth Proportional to 30,969.30, 42,736.36 and 17,540.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,969.30 : 42,736.36 = 17,540.72 : x
2. Step 2: Convert to fraction form
   30,969.30/42,736.36 = 17,540.72/x
3. Step 3: Cross multiply
   30,969.30x = 42,736.36 × 17,540.72
4. Step 4: Simplify right side
   30,969.30x = 749,626,524.58
5. Step 5: Solve for x
   x = 749,626,524.58/30,969.30
6. Step 6: Final answer
   x = 24,205.47