Finding the Fourth Proportional to 164,632.50, 227,192.85 and 89,181

Step by Step Solution

1. Step 1: Write the proportion equation
   164,632.50 : 227,192.85 = 89,181 : x
2. Step 2: Convert to fraction form
   164,632.50/227,192.85 = 89,181/x
3. Step 3: Cross multiply
   164,632.50x = 227,192.85 × 89,181
4. Step 4: Simplify right side
   164,632.50x = 20,261,285,555.85
5. Step 5: Solve for x
   x = 20,261,285,555.85/164,632.50
6. Step 6: Final answer
   x = 123,069.78