Finding the Fourth Proportional to 9,721.48, 14,584.52 and 3,147.65

Step by Step Solution

1. Step 1: Write the proportion equation
   9,721.48 : 14,584.52 = 3,147.65 : x
2. Step 2: Convert to fraction form
   9,721.48/14,584.52 = 3,147.65/x
3. Step 3: Cross multiply
   9,721.48x = 14,584.52 × 3,147.65
4. Step 4: Simplify right side
   9,721.48x = 45,907,008.71
5. Step 5: Solve for x
   x = 45,907,008.71/9,721.48
6. Step 6: Final answer
   x = 4,722.23