Finding the Fourth Proportional to 119,164.57, 164,446.61 and 65,449.42

Step by Step Solution

1. Step 1: Write the proportion equation
   119,164.57 : 164,446.61 = 65,449.42 : x
2. Step 2: Convert to fraction form
   119,164.57/164,446.61 = 65,449.42/x
3. Step 3: Cross multiply
   119,164.57x = 164,446.61 × 65,449.42
4. Step 4: Simplify right side
   119,164.57x = 10,762,934,507.10
5. Step 5: Solve for x
   x = 10,762,934,507.10/119,164.57
6. Step 6: Final answer
   x = 90,319.92