Finding the Fourth Proportional to 10,215.54, 14,103.90 and 6,684.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,215.54 : 14,103.90 = 6,684.72 : x
2. Step 2: Convert to fraction form
   10,215.54/14,103.90 = 6,684.72/x
3. Step 3: Cross multiply
   10,215.54x = 14,103.90 × 6,684.72
4. Step 4: Simplify right side
   10,215.54x = 94,280,622.41
5. Step 5: Solve for x
   x = 94,280,622.41/10,215.54
6. Step 6: Final answer
   x = 9,229.14