Finding the Fourth Proportional to 10,710.30, 14,760.18 and 7,721.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,710.30 : 14,760.18 = 7,721.04 : x
2. Step 2: Convert to fraction form
   10,710.30/14,760.18 = 7,721.04/x
3. Step 3: Cross multiply
   10,710.30x = 14,760.18 × 7,721.04
4. Step 4: Simplify right side
   10,710.30x = 113,963,940.19
5. Step 5: Solve for x
   x = 113,963,940.19/10,710.30
6. Step 6: Final answer
   x = 10,640.59