Finding the Fourth Proportional to 10,440.54, 14,398.16 and 8,323.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,440.54 : 14,398.16 = 8,323.10 : x
2. Step 2: Convert to fraction form
   10,440.54/14,398.16 = 8,323.10/x
3. Step 3: Cross multiply
   10,440.54x = 14,398.16 × 8,323.10
4. Step 4: Simplify right side
   10,440.54x = 119,837,211.89
5. Step 5: Solve for x
   x = 119,837,211.89/10,440.54
6. Step 6: Final answer
   x = 11,478.07