Finding the Fourth Proportional to 200,621.33, 300,743.60 and 67,408.43

Step by Step Solution

1. Step 1: Write the proportion equation
   200,621.33 : 300,743.60 = 67,408.43 : x
2. Step 2: Convert to fraction form
   200,621.33/300,743.60 = 67,408.43/x
3. Step 3: Cross multiply
   200,621.33x = 300,743.60 × 67,408.43
4. Step 4: Simplify right side
   200,621.33x = 20,272,652,404.83
5. Step 5: Solve for x
   x = 20,272,652,404.83/200,621.33
6. Step 6: Final answer
   x = 101,049.34