Finding the Fourth Proportional to 9,721.16, 14,584.05 and 3,147.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,721.16 : 14,584.05 = 3,147.34 : x
2. Step 2: Convert to fraction form
   9,721.16/14,584.05 = 3,147.34/x
3. Step 3: Cross multiply
   9,721.16x = 14,584.05 × 3,147.34
4. Step 4: Simplify right side
   9,721.16x = 45,900,963.93
5. Step 5: Solve for x
   x = 45,900,963.93/9,721.16
6. Step 6: Final answer
   x = 4,721.76