Finding the Fourth Proportional to 30,789.48, 42,489.94 and 17,361.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,789.48 : 42,489.94 = 17,361.38 : x
2. Step 2: Convert to fraction form
   30,789.48/42,489.94 = 17,361.38/x
3. Step 3: Cross multiply
   30,789.48x = 42,489.94 × 17,361.38
4. Step 4: Simplify right side
   30,789.48x = 737,683,994.52
5. Step 5: Solve for x
   x = 737,683,994.52/30,789.48
6. Step 6: Final answer
   x = 23,958.96