Finding the Fourth Proportional to 64,951.20, 89,630.82 and 36,270.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,951.20 : 89,630.82 = 36,270.72 : x
2. Step 2: Convert to fraction form
   64,951.20/89,630.82 = 36,270.72/x
3. Step 3: Cross multiply
   64,951.20x = 89,630.82 × 36,270.72
4. Step 4: Simplify right side
   64,951.20x = 3,250,974,375.59
5. Step 5: Solve for x
   x = 3,250,974,375.59/64,951.20
6. Step 6: Final answer
   x = 50,052.57