Finding the Fourth Proportional to 119,170.16, 164,456.16 and 65,456.42

Step by Step Solution

1. Step 1: Write the proportion equation
   119,170.16 : 164,456.16 = 65,456.42 : x
2. Step 2: Convert to fraction form
   119,170.16/164,456.16 = 65,456.42/x
3. Step 3: Cross multiply
   119,170.16x = 164,456.16 × 65,456.42
4. Step 4: Simplify right side
   119,170.16x = 10,764,711,480.55
5. Step 5: Solve for x
   x = 10,764,711,480.55/119,170.16
6. Step 6: Final answer
   x = 90,330.60