Finding the Fourth Proportional to 65,568, 90,486.72 and 35,760

Step by Step Solution

1. Step 1: Write the proportion equation
   65,568 : 90,486.72 = 35,760 : x
2. Step 2: Convert to fraction form
   65,568/90,486.72 = 35,760/x
3. Step 3: Cross multiply
   65,568x = 90,486.72 × 35,760
4. Step 4: Simplify right side
   65,568x = 3,235,805,107.20
5. Step 5: Solve for x
   x = 3,235,805,107.20/65,568
6. Step 6: Final answer
   x = 49,350.37