Finding the Fourth Proportional to 164,662.31, 227,234.20 and 89,210.81

Step by Step Solution

1. Step 1: Write the proportion equation
   164,662.31 : 227,234.20 = 89,210.81 : x
2. Step 2: Convert to fraction form
   164,662.31/227,234.20 = 89,210.81/x
3. Step 3: Cross multiply
   164,662.31x = 227,234.20 × 89,210.81
4. Step 4: Simplify right side
   164,662.31x = 20,271,747,041.70
5. Step 5: Solve for x
   x = 20,271,747,041.70/164,662.31
6. Step 6: Final answer
   x = 123,111.03