Finding the Fourth Proportional to 123,162.36, 169,991.22 and 80,066.88

Step by Step Solution

1. Step 1: Write the proportion equation
   123,162.36 : 169,991.22 = 80,066.88 : x
2. Step 2: Convert to fraction form
   123,162.36/169,991.22 = 80,066.88/x
3. Step 3: Cross multiply
   123,162.36x = 169,991.22 × 80,066.88
4. Step 4: Simplify right side
   123,162.36x = 13,610,666,612.79
5. Step 5: Solve for x
   x = 13,610,666,612.79/123,162.36
6. Step 6: Final answer
   x = 110,509.95