Finding the Fourth Proportional to 161,573.54, 222,980.31 and 89,951.99

Step by Step Solution

1. Step 1: Write the proportion equation
   161,573.54 : 222,980.31 = 89,951.99 : x
2. Step 2: Convert to fraction form
   161,573.54/222,980.31 = 89,951.99/x
3. Step 3: Cross multiply
   161,573.54x = 222,980.31 × 89,951.99
4. Step 4: Simplify right side
   161,573.54x = 20,057,521,500.42
5. Step 5: Solve for x
   x = 20,057,521,500.42/161,573.54
6. Step 6: Final answer
   x = 124,138.66