Finding the Fourth Proportional to 144,066.72, 198,823.32 and 80,414.06

Step by Step Solution

1. Step 1: Write the proportion equation
   144,066.72 : 198,823.32 = 80,414.06 : x
2. Step 2: Convert to fraction form
   144,066.72/198,823.32 = 80,414.06/x
3. Step 3: Cross multiply
   144,066.72x = 198,823.32 × 80,414.06
4. Step 4: Simplify right side
   144,066.72x = 15,988,190,383.88
5. Step 5: Solve for x
   x = 15,988,190,383.88/144,066.72
6. Step 6: Final answer
   x = 110,977.68