Finding the Fourth Proportional to 161,081.94, 222,285.89 and 96,586.78

Step by Step Solution

1. Step 1: Write the proportion equation
   161,081.94 : 222,285.89 = 96,586.78 : x
2. Step 2: Convert to fraction form
   161,081.94/222,285.89 = 96,586.78/x
3. Step 3: Cross multiply
   161,081.94x = 222,285.89 × 96,586.78
4. Step 4: Simplify right side
   161,081.94x = 21,469,876,760.17
5. Step 5: Solve for x
   x = 21,469,876,760.17/161,081.94
6. Step 6: Final answer
   x = 133,285.44