Finding the Fourth Proportional to 65,222.96, 90,081.60 and 43,965.68

Step by Step Solution

1. Step 1: Write the proportion equation
   65,222.96 : 90,081.60 = 43,965.68 : x
2. Step 2: Convert to fraction form
   65,222.96/90,081.60 = 43,965.68/x
3. Step 3: Cross multiply
   65,222.96x = 90,081.60 × 43,965.68
4. Step 4: Simplify right side
   65,222.96x = 3,960,498,799.49
5. Step 5: Solve for x
   x = 3,960,498,799.49/65,222.96
6. Step 6: Final answer
   x = 60,722.46