Finding the Fourth Proportional to 144,164.16, 198,944.16 and 80,502.72

Step by Step Solution

1. Step 1: Write the proportion equation
   144,164.16 : 198,944.16 = 80,502.72 : x
2. Step 2: Convert to fraction form
   144,164.16/198,944.16 = 80,502.72/x
3. Step 3: Cross multiply
   144,164.16x = 198,944.16 × 80,502.72
4. Step 4: Simplify right side
   144,164.16x = 16,015,546,008.12
5. Step 5: Solve for x
   x = 16,015,546,008.12/144,164.16
6. Step 6: Final answer
   x = 111,092.42