Finding the Fourth Proportional to 288,142.30, 397,632.79 and 159,081.82

Step by Step Solution

1. Step 1: Write the proportion equation
   288,142.30 : 397,632.79 = 159,081.82 : x
2. Step 2: Convert to fraction form
   288,142.30/397,632.79 = 159,081.82/x
3. Step 3: Cross multiply
   288,142.30x = 397,632.79 × 159,081.82
4. Step 4: Simplify right side
   288,142.30x = 63,256,147,924.88
5. Step 5: Solve for x
   x = 63,256,147,924.88/288,142.30
6. Step 6: Final answer
   x = 219,530.93