Finding the Fourth Proportional to 10,142.69, 15,193.33 and 8,275.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,142.69 : 15,193.33 = 8,275.23 : x
2. Step 2: Convert to fraction form
   10,142.69/15,193.33 = 8,275.23/x
3. Step 3: Cross multiply
   10,142.69x = 15,193.33 × 8,275.23
4. Step 4: Simplify right side
   10,142.69x = 125,728,279.53
5. Step 5: Solve for x
   x = 125,728,279.53/10,142.69
6. Step 6: Final answer
   x = 12,395.96