Finding the Fourth Proportional to 161,067.72, 222,276.47 and 89,454.45

Step by Step Solution

1. Step 1: Write the proportion equation
   161,067.72 : 222,276.47 = 89,454.45 : x
2. Step 2: Convert to fraction form
   161,067.72/222,276.47 = 89,454.45/x
3. Step 3: Cross multiply
   161,067.72x = 222,276.47 × 89,454.45
4. Step 4: Simplify right side
   161,067.72x = 19,883,618,924.52
5. Step 5: Solve for x
   x = 19,883,618,924.52/161,067.72
6. Step 6: Final answer
   x = 123,448.81