Finding the Fourth Proportional to 144,816.27, 199,524.33 and 108,353.49

Step by Step Solution

1. Step 1: Write the proportion equation
   144,816.27 : 199,524.33 = 108,353.49 : x
2. Step 2: Convert to fraction form
   144,816.27/199,524.33 = 108,353.49/x
3. Step 3: Cross multiply
   144,816.27x = 199,524.33 × 108,353.49
4. Step 4: Simplify right side
   144,816.27x = 21,619,157,495.41
5. Step 5: Solve for x
   x = 21,619,157,495.41/144,816.27
6. Step 6: Final answer
   x = 149,286.80