Finding the Fourth Proportional to 65,686, 90,647.04 and 35,878

Step by Step Solution

1. Step 1: Write the proportion equation
   65,686 : 90,647.04 = 35,878 : x
2. Step 2: Convert to fraction form
   65,686/90,647.04 = 35,878/x
3. Step 3: Cross multiply
   65,686x = 90,647.04 × 35,878
4. Step 4: Simplify right side
   65,686x = 3,252,234,501.12
5. Step 5: Solve for x
   x = 3,252,234,501.12/65,686
6. Step 6: Final answer
   x = 49,511.84