Finding the Fourth Proportional to 64,651.57, 89,227.78 and 36,362.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,651.57 : 89,227.78 = 36,362.72 : x
2. Step 2: Convert to fraction form
   64,651.57/89,227.78 = 36,362.72/x
3. Step 3: Cross multiply
   64,651.57x = 89,227.78 × 36,362.72
4. Step 4: Simplify right side
   64,651.57x = 3,244,564,912.52
5. Step 5: Solve for x
   x = 3,244,564,912.52/64,651.57
6. Step 6: Final answer
   x = 50,185.40