Finding the Fourth Proportional to 65,695.50, 90,660.15 and 35,887.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,695.50 : 90,660.15 = 35,887.50 : x
2. Step 2: Convert to fraction form
   65,695.50/90,660.15 = 35,887.50/x
3. Step 3: Cross multiply
   65,695.50x = 90,660.15 × 35,887.50
4. Step 4: Simplify right side
   65,695.50x = 3,253,566,133.13
5. Step 5: Solve for x
   x = 3,253,566,133.13/65,695.50
6. Step 6: Final answer
   x = 49,524.95