Finding the Fourth Proportional to 164,667, 227,240.70 and 89,215.50

Step by Step Solution

1. Step 1: Write the proportion equation
   164,667 : 227,240.70 = 89,215.50 : x
2. Step 2: Convert to fraction form
   164,667/227,240.70 = 89,215.50/x
3. Step 3: Cross multiply
   164,667x = 227,240.70 × 89,215.50
4. Step 4: Simplify right side
   164,667x = 20,273,392,670.85
5. Step 5: Solve for x
   x = 20,273,392,670.85/164,667
6. Step 6: Final answer
   x = 123,117.52