Finding the Fourth Proportional to 64,638.10, 89,193.77 and 35,953.10

Step by Step Solution

1. Step 1: Write the proportion equation
   64,638.10 : 89,193.77 = 35,953.10 : x
2. Step 2: Convert to fraction form
   64,638.10/89,193.77 = 35,953.10/x
3. Step 3: Cross multiply
   64,638.10x = 89,193.77 × 35,953.10
4. Step 4: Simplify right side
   64,638.10x = 3,206,792,086.22
5. Step 5: Solve for x
   x = 3,206,792,086.22/64,638.10
6. Step 6: Final answer
   x = 49,611.49