Finding the Fourth Proportional to 164,518.80, 227,036.55 and 89,067.30

Step by Step Solution

1. Step 1: Write the proportion equation
   164,518.80 : 227,036.55 = 89,067.30 : x
2. Step 2: Convert to fraction form
   164,518.80/227,036.55 = 89,067.30/x
3. Step 3: Cross multiply
   164,518.80x = 227,036.55 × 89,067.30
4. Step 4: Simplify right side
   164,518.80x = 20,221,532,509.82
5. Step 5: Solve for x
   x = 20,221,532,509.82/164,518.80
6. Step 6: Final answer
   x = 122,913.20