Finding the Fourth Proportional to 30,786.26, 42,484.05 and 17,357.31

Step by Step Solution

1. Step 1: Write the proportion equation
   30,786.26 : 42,484.05 = 17,357.31 : x
2. Step 2: Convert to fraction form
   30,786.26/42,484.05 = 17,357.31/x
3. Step 3: Cross multiply
   30,786.26x = 42,484.05 × 17,357.31
4. Step 4: Simplify right side
   30,786.26x = 737,408,825.91
5. Step 5: Solve for x
   x = 737,408,825.91/30,786.26
6. Step 6: Final answer
   x = 23,952.53