Finding the Fourth Proportional to 67,621.43, 101,441.37 and 28,169.31

Step by Step Solution

1. Step 1: Write the proportion equation
   67,621.43 : 101,441.37 = 28,169.31 : x
2. Step 2: Convert to fraction form
   67,621.43/101,441.37 = 28,169.31/x
3. Step 3: Cross multiply
   67,621.43x = 101,441.37 × 28,169.31
4. Step 4: Simplify right side
   67,621.43x = 2,857,533,398.35
5. Step 5: Solve for x
   x = 2,857,533,398.35/67,621.43
6. Step 6: Final answer
   x = 42,257.81