Finding the Fourth Proportional to 10,805.50, 14,880 and 10,350.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,805.50 : 14,880 = 10,350.28 : x
2. Step 2: Convert to fraction form
   10,805.50/14,880 = 10,350.28/x
3. Step 3: Cross multiply
   10,805.50x = 14,880 × 10,350.28
4. Step 4: Simplify right side
   10,805.50x = 154,012,166.40
5. Step 5: Solve for x
   x = 154,012,166.40/10,805.50
6. Step 6: Final answer
   x = 14,253.13