Finding the Fourth Proportional to 119,709.62, 165,200.55 and 65,996.56

Step by Step Solution

1. Step 1: Write the proportion equation
   119,709.62 : 165,200.55 = 65,996.56 : x
2. Step 2: Convert to fraction form
   119,709.62/165,200.55 = 65,996.56/x
3. Step 3: Cross multiply
   119,709.62x = 165,200.55 × 65,996.56
4. Step 4: Simplify right side
   119,709.62x = 10,902,668,990.59
5. Step 5: Solve for x
   x = 10,902,668,990.59/119,709.62
6. Step 6: Final answer
   x = 91,075.96