Finding the Fourth Proportional to 120,078.83, 165,710.02 and 65,632.55

Step by Step Solution

1. Step 1: Write the proportion equation
   120,078.83 : 165,710.02 = 65,632.55 : x
2. Step 2: Convert to fraction form
   120,078.83/165,710.02 = 65,632.55/x
3. Step 3: Cross multiply
   120,078.83x = 165,710.02 × 65,632.55
4. Step 4: Simplify right side
   120,078.83x = 10,875,971,424.87
5. Step 5: Solve for x
   x = 10,875,971,424.87/120,078.83
6. Step 6: Final answer
   x = 90,573.60