Finding the Fourth Proportional to 120,053.43, 165,674.15 and 65,605.59

Step by Step Solution

1. Step 1: Write the proportion equation
   120,053.43 : 165,674.15 = 65,605.59 : x
2. Step 2: Convert to fraction form
   120,053.43/165,674.15 = 65,605.59/x
3. Step 3: Cross multiply
   120,053.43x = 165,674.15 × 65,605.59
4. Step 4: Simplify right side
   120,053.43x = 10,869,150,358.50
5. Step 5: Solve for x
   x = 10,869,150,358.50/120,053.43
6. Step 6: Final answer
   x = 90,535.94