Finding the Fourth Proportional to 161,508, 222,871.89 and 88,909.32

Step by Step Solution

1. Step 1: Write the proportion equation
   161,508 : 222,871.89 = 88,909.32 : x
2. Step 2: Convert to fraction form
   161,508/222,871.89 = 88,909.32/x
3. Step 3: Cross multiply
   161,508x = 222,871.89 × 88,909.32
4. Step 4: Simplify right side
   161,508x = 19,815,388,187.01
5. Step 5: Solve for x
   x = 19,815,388,187.01/161,508
6. Step 6: Final answer
   x = 122,689.82