Finding the Fourth Proportional to 116,759.20, 161,105.88 and 65,768.08

Step by Step Solution

1. Step 1: Write the proportion equation
   116,759.20 : 161,105.88 = 65,768.08 : x
2. Step 2: Convert to fraction form
   116,759.20/161,105.88 = 65,768.08/x
3. Step 3: Cross multiply
   116,759.20x = 161,105.88 × 65,768.08
4. Step 4: Simplify right side
   116,759.20x = 10,595,624,404.31
5. Step 5: Solve for x
   x = 10,595,624,404.31/116,759.20
6. Step 6: Final answer
   x = 90,747.66