Finding the Fourth Proportional to 12,976.50, 17,889.54 and 10,968.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,976.50 : 17,889.54 = 10,968.24 : x
2. Step 2: Convert to fraction form
   12,976.50/17,889.54 = 10,968.24/x
3. Step 3: Cross multiply
   12,976.50x = 17,889.54 × 10,968.24
4. Step 4: Simplify right side
   12,976.50x = 196,216,768.21
5. Step 5: Solve for x
   x = 196,216,768.21/12,976.50
6. Step 6: Final answer
   x = 15,120.93