Finding the Fourth Proportional to 161,066.94, 222,263.55 and 89,442.42

Step by Step Solution

1. Step 1: Write the proportion equation
   161,066.94 : 222,263.55 = 89,442.42 : x
2. Step 2: Convert to fraction form
   161,066.94/222,263.55 = 89,442.42/x
3. Step 3: Cross multiply
   161,066.94x = 222,263.55 × 89,442.42
4. Step 4: Simplify right side
   161,066.94x = 19,879,789,789.79
5. Step 5: Solve for x
   x = 19,879,789,789.79/161,066.94
6. Step 6: Final answer
   x = 123,425.64