Finding the Fourth Proportional to 109,067.42, 150,451.57 and 65,448.69

Step by Step Solution

1. Step 1: Write the proportion equation
   109,067.42 : 150,451.57 = 65,448.69 : x
2. Step 2: Convert to fraction form
   109,067.42/150,451.57 = 65,448.69/x
3. Step 3: Cross multiply
   109,067.42x = 150,451.57 × 65,448.69
4. Step 4: Simplify right side
   109,067.42x = 9,846,858,164.94
5. Step 5: Solve for x
   x = 9,846,858,164.94/109,067.42
6. Step 6: Final answer
   x = 90,282.31