Finding the Fourth Proportional to 12,182.72, 16,811.82 and 6,878.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,182.72 : 16,811.82 = 6,878.03 : x
2. Step 2: Convert to fraction form
   12,182.72/16,811.82 = 6,878.03/x
3. Step 3: Cross multiply
   12,182.72x = 16,811.82 × 6,878.03
4. Step 4: Simplify right side
   12,182.72x = 115,632,202.31
5. Step 5: Solve for x
   x = 115,632,202.31/12,182.72
6. Step 6: Final answer
   x = 9,491.49