Finding the Fourth Proportional to 120,323.45, 166,048.33 and 65,874.70

Step by Step Solution

1. Step 1: Write the proportion equation
   120,323.45 : 166,048.33 = 65,874.70 : x
2. Step 2: Convert to fraction form
   120,323.45/166,048.33 = 65,874.70/x
3. Step 3: Cross multiply
   120,323.45x = 166,048.33 × 65,874.70
4. Step 4: Simplify right side
   120,323.45x = 10,938,384,217.56
5. Step 5: Solve for x
   x = 10,938,384,217.56/120,323.45
6. Step 6: Final answer
   x = 90,908.16