Finding the Fourth Proportional to 64,620.98, 89,175.39 and 35,940.55

Step by Step Solution

1. Step 1: Write the proportion equation
   64,620.98 : 89,175.39 = 35,940.55 : x
2. Step 2: Convert to fraction form
   64,620.98/89,175.39 = 35,940.55/x
3. Step 3: Cross multiply
   64,620.98x = 89,175.39 × 35,940.55
4. Step 4: Simplify right side
   64,620.98x = 3,205,013,121.03
5. Step 5: Solve for x
   x = 3,205,013,121.03/64,620.98
6. Step 6: Final answer
   x = 49,597.10