Finding the Fourth Proportional to 65,221.48, 90,006.72 and 36,540.82

Step by Step Solution

1. Step 1: Write the proportion equation
   65,221.48 : 90,006.72 = 36,540.82 : x
2. Step 2: Convert to fraction form
   65,221.48/90,006.72 = 36,540.82/x
3. Step 3: Cross multiply
   65,221.48x = 90,006.72 × 36,540.82
4. Step 4: Simplify right side
   65,221.48x = 3,288,919,354.31
5. Step 5: Solve for x
   x = 3,288,919,354.31/65,221.48
6. Step 6: Final answer
   x = 50,426.94