Finding the Fourth Proportional to 30,786.87, 42,480.45 and 17,358.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,786.87 : 42,480.45 = 17,358.69 : x
2. Step 2: Convert to fraction form
   30,786.87/42,480.45 = 17,358.69/x
3. Step 3: Cross multiply
   30,786.87x = 42,480.45 × 17,358.69
4. Step 4: Simplify right side
   30,786.87x = 737,404,962.61
5. Step 5: Solve for x
   x = 737,404,962.61/30,786.87
6. Step 6: Final answer
   x = 23,951.93