Finding the Fourth Proportional to 30,993.91, 42,770.19 and 17,564.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,993.91 : 42,770.19 = 17,564.38 : x
2. Step 2: Convert to fraction form
   30,993.91/42,770.19 = 17,564.38/x
3. Step 3: Cross multiply
   30,993.91x = 42,770.19 × 17,564.38
4. Step 4: Simplify right side
   30,993.91x = 751,231,869.83
5. Step 5: Solve for x
   x = 751,231,869.83/30,993.91
6. Step 6: Final answer
   x = 24,238.05