Finding the Fourth Proportional to 123,162.24, 169,965.12 and 66,574.72

Step by Step Solution

1. Step 1: Write the proportion equation
   123,162.24 : 169,965.12 = 66,574.72 : x
2. Step 2: Convert to fraction form
   123,162.24/169,965.12 = 66,574.72/x
3. Step 3: Cross multiply
   123,162.24x = 169,965.12 × 66,574.72
4. Step 4: Simplify right side
   123,162.24x = 11,315,380,273.77
5. Step 5: Solve for x
   x = 11,315,380,273.77/123,162.24
6. Step 6: Final answer
   x = 91,873.78