Finding the Fourth Proportional to 120,103.74, 165,743.19 and 65,656.14

Step by Step Solution

1. Step 1: Write the proportion equation
   120,103.74 : 165,743.19 = 65,656.14 : x
2. Step 2: Convert to fraction form
   120,103.74/165,743.19 = 65,656.14/x
3. Step 3: Cross multiply
   120,103.74x = 165,743.19 × 65,656.14
4. Step 4: Simplify right side
   120,103.74x = 10,882,058,086.69
5. Step 5: Solve for x
   x = 10,882,058,086.69/120,103.74
6. Step 6: Final answer
   x = 90,605.49