Finding the Fourth Proportional to 164,640.09, 227,203.33 and 89,188.59

Step by Step Solution

1. Step 1: Write the proportion equation
   164,640.09 : 227,203.33 = 89,188.59 : x
2. Step 2: Convert to fraction form
   164,640.09/227,203.33 = 89,188.59/x
3. Step 3: Cross multiply
   164,640.09x = 227,203.33 × 89,188.59
4. Step 4: Simplify right side
   164,640.09x = 20,263,945,442.27
5. Step 5: Solve for x
   x = 20,263,945,442.27/164,640.09
6. Step 6: Final answer
   x = 123,080.26