Finding the Fourth Proportional to 30,991.42, 42,768.01 and 16,844.27

Step by Step Solution

1. Step 1: Write the proportion equation
   30,991.42 : 42,768.01 = 16,844.27 : x
2. Step 2: Convert to fraction form
   30,991.42/42,768.01 = 16,844.27/x
3. Step 3: Cross multiply
   30,991.42x = 42,768.01 × 16,844.27
4. Step 4: Simplify right side
   30,991.42x = 720,395,907.80
5. Step 5: Solve for x
   x = 720,395,907.80/30,991.42
6. Step 6: Final answer
   x = 23,245.01