Finding the Fourth Proportional to 120,124.42, 165,766.48 and 65,675.54

Step by Step Solution

1. Step 1: Write the proportion equation
   120,124.42 : 165,766.48 = 65,675.54 : x
2. Step 2: Convert to fraction form
   120,124.42/165,766.48 = 65,675.54/x
3. Step 3: Cross multiply
   120,124.42x = 165,766.48 × 65,675.54
4. Step 4: Simplify right side
   120,124.42x = 10,886,803,087.90
5. Step 5: Solve for x
   x = 10,886,803,087.90/120,124.42
6. Step 6: Final answer
   x = 90,629.39