Finding the Fourth Proportional to 65,786.18, 90,784.92 and 35,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,786.18 : 90,784.92 = 35,571.50 : x
2. Step 2: Convert to fraction form
   65,786.18/90,784.92 = 35,571.50/x
3. Step 3: Cross multiply
   65,786.18x = 90,784.92 × 35,571.50
4. Step 4: Simplify right side
   65,786.18x = 3,229,355,781.78
5. Step 5: Solve for x
   x = 3,229,355,781.78/65,786.18
6. Step 6: Final answer
   x = 49,088.67