Finding the Fourth Proportional to 65,456.50, 90,329.98 and 35,648.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,456.50 : 90,329.98 = 35,648.50 : x
2. Step 2: Convert to fraction form
   65,456.50/90,329.98 = 35,648.50/x
3. Step 3: Cross multiply
   65,456.50x = 90,329.98 × 35,648.50
4. Step 4: Simplify right side
   65,456.50x = 3,220,128,292.03
5. Step 5: Solve for x
   x = 3,220,128,292.03/65,456.50
6. Step 6: Final answer
   x = 49,194.94