Finding the Fourth Proportional to 160,978.44, 222,146.06 and 89,356.62

Step by Step Solution

1. Step 1: Write the proportion equation
   160,978.44 : 222,146.06 = 89,356.62 : x
2. Step 2: Convert to fraction form
   160,978.44/222,146.06 = 89,356.62/x
3. Step 3: Cross multiply
   160,978.44x = 222,146.06 × 89,356.62
4. Step 4: Simplify right side
   160,978.44x = 19,850,221,067.92
5. Step 5: Solve for x
   x = 19,850,221,067.92/160,978.44
6. Step 6: Final answer
   x = 123,309.81