Finding the Fourth Proportional to 288,042.72, 397,498.71 and 160,718.32

Step by Step Solution

1. Step 1: Write the proportion equation
   288,042.72 : 397,498.71 = 160,718.32 : x
2. Step 2: Convert to fraction form
   288,042.72/397,498.71 = 160,718.32/x
3. Step 3: Cross multiply
   288,042.72x = 397,498.71 × 160,718.32
4. Step 4: Simplify right side
   288,042.72x = 63,885,322,885.87
5. Step 5: Solve for x
   x = 63,885,322,885.87/288,042.72
6. Step 6: Final answer
   x = 221,791.14