Finding the Fourth Proportional to 161,527.10, 222,907.37 and 89,905.57

Step by Step Solution

1. Step 1: Write the proportion equation
   161,527.10 : 222,907.37 = 89,905.57 : x
2. Step 2: Convert to fraction form
   161,527.10/222,907.37 = 89,905.57/x
3. Step 3: Cross multiply
   161,527.10x = 222,907.37 × 89,905.57
4. Step 4: Simplify right side
   161,527.10x = 20,040,613,150.25
5. Step 5: Solve for x
   x = 20,040,613,150.25/161,527.10
6. Step 6: Final answer
   x = 124,069.67