Finding the Fourth Proportional to 164,820, 227,451.60 and 89,368.48

Step by Step Solution

1. Step 1: Write the proportion equation
   164,820 : 227,451.60 = 89,368.48 : x
2. Step 2: Convert to fraction form
   164,820/227,451.60 = 89,368.48/x
3. Step 3: Cross multiply
   164,820x = 227,451.60 × 89,368.48
4. Step 4: Simplify right side
   164,820x = 20,327,003,765.57
5. Step 5: Solve for x
   x = 20,327,003,765.57/164,820
6. Step 6: Final answer
   x = 123,328.50