Finding the Fourth Proportional to 161,036.34, 222,223.42 and 89,412.10

Step by Step Solution

1. Step 1: Write the proportion equation
   161,036.34 : 222,223.42 = 89,412.10 : x
2. Step 2: Convert to fraction form
   161,036.34/222,223.42 = 89,412.10/x
3. Step 3: Cross multiply
   161,036.34x = 222,223.42 × 89,412.10
4. Step 4: Simplify right side
   161,036.34x = 19,869,462,651.38
5. Step 5: Solve for x
   x = 19,869,462,651.38/161,036.34
6. Step 6: Final answer
   x = 123,384.96