Finding the Fourth Proportional to 10,976.88, 16,467.72 and 3,186.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,976.88 : 16,467.72 = 3,186.36 : x
2. Step 2: Convert to fraction form
   10,976.88/16,467.72 = 3,186.36/x
3. Step 3: Cross multiply
   10,976.88x = 16,467.72 × 3,186.36
4. Step 4: Simplify right side
   10,976.88x = 52,472,084.30
5. Step 5: Solve for x
   x = 52,472,084.30/10,976.88
6. Step 6: Final answer
   x = 4,780.24