Finding the Fourth Proportional to 164,900.20, 227,561.88 and 89,448.70

Step by Step Solution

1. Step 1: Write the proportion equation
   164,900.20 : 227,561.88 = 89,448.70 : x
2. Step 2: Convert to fraction form
   164,900.20/227,561.88 = 89,448.70/x
3. Step 3: Cross multiply
   164,900.20x = 227,561.88 × 89,448.70
4. Step 4: Simplify right side
   164,900.20x = 20,355,114,335.56
5. Step 5: Solve for x
   x = 20,355,114,335.56/164,900.20
6. Step 6: Final answer
   x = 123,438.99