Finding the Fourth Proportional to 65,696.57, 90,661.23 and 35,481.89

Step by Step Solution

1. Step 1: Write the proportion equation
   65,696.57 : 90,661.23 = 35,481.89 : x
2. Step 2: Convert to fraction form
   65,696.57/90,661.23 = 35,481.89/x
3. Step 3: Cross multiply
   65,696.57x = 90,661.23 × 35,481.89
4. Step 4: Simplify right side
   65,696.57x = 3,216,831,790.12
5. Step 5: Solve for x
   x = 3,216,831,790.12/65,696.57
6. Step 6: Final answer
   x = 48,964.99