Finding the Fourth Proportional to 65,802.21, 90,806.79 and 35,587.57

Step by Step Solution

1. Step 1: Write the proportion equation
   65,802.21 : 90,806.79 = 35,587.57 : x
2. Step 2: Convert to fraction form
   65,802.21/90,806.79 = 35,587.57/x
3. Step 3: Cross multiply
   65,802.21x = 90,806.79 × 35,587.57
4. Step 4: Simplify right side
   65,802.21x = 3,231,592,995.60
5. Step 5: Solve for x
   x = 3,231,592,995.60/65,802.21
6. Step 6: Final answer
   x = 49,110.71