Finding the Fourth Proportional to 408,856.57, 613,241.71 and 109,367.37

Step by Step Solution

1. Step 1: Write the proportion equation
   408,856.57 : 613,241.71 = 109,367.37 : x
2. Step 2: Convert to fraction form
   408,856.57/613,241.71 = 109,367.37/x
3. Step 3: Cross multiply
   408,856.57x = 613,241.71 × 109,367.37
4. Step 4: Simplify right side
   408,856.57x = 67,068,632,997.00
5. Step 5: Solve for x
   x = 67,068,632,997.00/408,856.57
6. Step 6: Final answer
   x = 164,039.51