Finding the Fourth Proportional to 288,799.94, 398,552.73 and 161,498.18

Step by Step Solution

1. Step 1: Write the proportion equation
   288,799.94 : 398,552.73 = 161,498.18 : x
2. Step 2: Convert to fraction form
   288,799.94/398,552.73 = 161,498.18/x
3. Step 3: Cross multiply
   288,799.94x = 398,552.73 × 161,498.18
4. Step 4: Simplify right side
   288,799.94x = 64,365,540,529.03
5. Step 5: Solve for x
   x = 64,365,540,529.03/288,799.94
6. Step 6: Final answer
   x = 222,872.42