Finding the Fourth Proportional to 119,586.42, 165,022.56 and 65,861.28

Step by Step Solution

1. Step 1: Write the proportion equation
   119,586.42 : 165,022.56 = 65,861.28 : x
2. Step 2: Convert to fraction form
   119,586.42/165,022.56 = 65,861.28/x
3. Step 3: Cross multiply
   119,586.42x = 165,022.56 × 65,861.28
4. Step 4: Simplify right side
   119,586.42x = 10,868,597,030.48
5. Step 5: Solve for x
   x = 10,868,597,030.48/119,586.42
6. Step 6: Final answer
   x = 90,884.88