Finding the Fourth Proportional to 120,365.46, 166,103.14 and 65,174.53

Step by Step Solution

1. Step 1: Write the proportion equation
   120,365.46 : 166,103.14 = 65,174.53 : x
2. Step 2: Convert to fraction form
   120,365.46/166,103.14 = 65,174.53/x
3. Step 3: Cross multiply
   120,365.46x = 166,103.14 × 65,174.53
4. Step 4: Simplify right side
   120,365.46x = 10,825,694,081.02
5. Step 5: Solve for x
   x = 10,825,694,081.02/120,365.46
6. Step 6: Final answer
   x = 89,940.20