Finding the Fourth Proportional to 11,760.43, 16,228.07 and 6,978.67

Step by Step Solution

1. Step 1: Write the proportion equation
   11,760.43 : 16,228.07 = 6,978.67 : x
2. Step 2: Convert to fraction form
   11,760.43/16,228.07 = 6,978.67/x
3. Step 3: Cross multiply
   11,760.43x = 16,228.07 × 6,978.67
4. Step 4: Simplify right side
   11,760.43x = 113,250,345.27
5. Step 5: Solve for x
   x = 113,250,345.27/11,760.43
6. Step 6: Final answer
   x = 9,629.78