Finding the Fourth Proportional to 30,849.69, 42,570.15 and 17,422.28

Step by Step Solution

1. Step 1: Write the proportion equation
   30,849.69 : 42,570.15 = 17,422.28 : x
2. Step 2: Convert to fraction form
   30,849.69/42,570.15 = 17,422.28/x
3. Step 3: Cross multiply
   30,849.69x = 42,570.15 × 17,422.28
4. Step 4: Simplify right side
   30,849.69x = 741,668,860.09
5. Step 5: Solve for x
   x = 741,668,860.09/30,849.69
6. Step 6: Final answer
   x = 24,041.37