Finding the Fourth Proportional to 65,426, 90,287.88 and 35,618

Step by Step Solution

1. Step 1: Write the proportion equation
   65,426 : 90,287.88 = 35,618 : x
2. Step 2: Convert to fraction form
   65,426/90,287.88 = 35,618/x
3. Step 3: Cross multiply
   65,426x = 90,287.88 × 35,618
4. Step 4: Simplify right side
   65,426x = 3,215,873,709.84
5. Step 5: Solve for x
   x = 3,215,873,709.84/65,426
6. Step 6: Final answer
   x = 49,152.84