Finding the Fourth Proportional to 164,739.50, 227,340.70 and 89,288.00

Step by Step Solution

1. Step 1: Write the proportion equation
   164,739.50 : 227,340.70 = 89,288.00 : x
2. Step 2: Convert to fraction form
   164,739.50/227,340.70 = 89,288.00/x
3. Step 3: Cross multiply
   164,739.50x = 227,340.70 × 89,288.00
4. Step 4: Simplify right side
   164,739.50x = 20,298,795,061.68
5. Step 5: Solve for x
   x = 20,298,795,061.68/164,739.50
6. Step 6: Final answer
   x = 123,217.54