Finding the Fourth Proportional to 161,509, 222,873.27 and 88,910.32

Step by Step Solution

1. Step 1: Write the proportion equation
   161,509 : 222,873.27 = 88,910.32 : x
2. Step 2: Convert to fraction form
   161,509/222,873.27 = 88,910.32/x
3. Step 3: Cross multiply
   161,509x = 222,873.27 × 88,910.32
4. Step 4: Simplify right side
   161,509x = 19,815,733,755.15
5. Step 5: Solve for x
   x = 19,815,733,755.15/161,509
6. Step 6: Final answer
   x = 122,691.20