Finding the Fourth Proportional to 119,581.64, 165,022.43 and 65,870.27

Step by Step Solution

1. Step 1: Write the proportion equation
   119,581.64 : 165,022.43 = 65,870.27 : x
2. Step 2: Convert to fraction form
   119,581.64/165,022.43 = 65,870.27/x
3. Step 3: Cross multiply
   119,581.64x = 165,022.43 × 65,870.27
4. Step 4: Simplify right side
   119,581.64x = 10,870,072,020.16
5. Step 5: Solve for x
   x = 10,870,072,020.16/119,581.64
6. Step 6: Final answer
   x = 90,900.84