Finding the Fourth Proportional to 30,891.50, 42,630.34 and 16,744.34

Step by Step Solution

1. Step 1: Write the proportion equation
   30,891.50 : 42,630.34 = 16,744.34 : x
2. Step 2: Convert to fraction form
   30,891.50/42,630.34 = 16,744.34/x
3. Step 3: Cross multiply
   30,891.50x = 42,630.34 × 16,744.34
4. Step 4: Simplify right side
   30,891.50x = 713,816,907.28
5. Step 5: Solve for x
   x = 713,816,907.28/30,891.50
6. Step 6: Final answer
   x = 23,107.23