Finding the Fourth Proportional to 9,891.72, 14,843.52 and 3,650.67

Step by Step Solution

1. Step 1: Write the proportion equation
   9,891.72 : 14,843.52 = 3,650.67 : x
2. Step 2: Convert to fraction form
   9,891.72/14,843.52 = 3,650.67/x
3. Step 3: Cross multiply
   9,891.72x = 14,843.52 × 3,650.67
4. Step 4: Simplify right side
   9,891.72x = 54,188,793.16
5. Step 5: Solve for x
   x = 54,188,793.16/9,891.72
6. Step 6: Final answer
   x = 5,478.20