Finding the Fourth Proportional to 10,986.32, 16,455.62 and 6,756.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,986.32 : 16,455.62 = 6,756.71 : x
2. Step 2: Convert to fraction form
   10,986.32/16,455.62 = 6,756.71/x
3. Step 3: Cross multiply
   10,986.32x = 16,455.62 × 6,756.71
4. Step 4: Simplify right side
   10,986.32x = 111,185,786.82
5. Step 5: Solve for x
   x = 111,185,786.82/10,986.32
6. Step 6: Final answer
   x = 10,120.38