Finding the Fourth Proportional to 65,978.24, 91,049.76 and 35,763.68

Step by Step Solution

1. Step 1: Write the proportion equation
   65,978.24 : 91,049.76 = 35,763.68 : x
2. Step 2: Convert to fraction form
   65,978.24/91,049.76 = 35,763.68/x
3. Step 3: Cross multiply
   65,978.24x = 91,049.76 × 35,763.68
4. Step 4: Simplify right side
   65,978.24x = 3,256,274,480.72
5. Step 5: Solve for x
   x = 3,256,274,480.72/65,978.24
6. Step 6: Final answer
   x = 49,353.76