Finding the Fourth Proportional to 580,456.72, 870,689.94 and 159,755.68

Step by Step Solution

1. Step 1: Write the proportion equation
   580,456.72 : 870,689.94 = 159,755.68 : x
2. Step 2: Convert to fraction form
   580,456.72/870,689.94 = 159,755.68/x
3. Step 3: Cross multiply
   580,456.72x = 870,689.94 × 159,755.68
4. Step 4: Simplify right side
   580,456.72x = 139,097,663,433.86
5. Step 5: Solve for x
   x = 139,097,663,433.86/580,456.72
6. Step 6: Final answer
   x = 239,634.86