Finding the Fourth Proportional to 12,363.54, 17,051.78 and 10,868.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,363.54 : 17,051.78 = 10,868.28 : x
2. Step 2: Convert to fraction form
   12,363.54/17,051.78 = 10,868.28/x
3. Step 3: Cross multiply
   12,363.54x = 17,051.78 × 10,868.28
4. Step 4: Simplify right side
   12,363.54x = 185,323,519.54
5. Step 5: Solve for x
   x = 185,323,519.54/12,363.54
6. Step 6: Final answer
   x = 14,989.52