Finding the Fourth Proportional to 10,861.49, 14,986.52 and 8,175.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,861.49 : 14,986.52 = 8,175.53 : x
2. Step 2: Convert to fraction form
   10,861.49/14,986.52 = 8,175.53/x
3. Step 3: Cross multiply
   10,861.49x = 14,986.52 × 8,175.53
4. Step 4: Simplify right side
   10,861.49x = 122,522,668.92
5. Step 5: Solve for x
   x = 122,522,668.92/10,861.49
6. Step 6: Final answer
   x = 11,280.47