Finding the Fourth Proportional to 161,091.98, 222,300.75 and 89,476.57

Step by Step Solution

1. Step 1: Write the proportion equation
   161,091.98 : 222,300.75 = 89,476.57 : x
2. Step 2: Convert to fraction form
   161,091.98/222,300.75 = 89,476.57/x
3. Step 3: Cross multiply
   161,091.98x = 222,300.75 × 89,476.57
4. Step 4: Simplify right side
   161,091.98x = 19,890,708,618.43
5. Step 5: Solve for x
   x = 19,890,708,618.43/161,091.98
6. Step 6: Final answer
   x = 123,474.23