Finding the Fourth Proportional to 11,782.72, 16,247.82 and 8,793.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,782.72 : 16,247.82 = 8,793.76 : x
2. Step 2: Convert to fraction form
   11,782.72/16,247.82 = 8,793.76/x
3. Step 3: Cross multiply
   11,782.72x = 16,247.82 × 8,793.76
4. Step 4: Simplify right side
   11,782.72x = 142,879,429.60
5. Step 5: Solve for x
   x = 142,879,429.60/11,782.72
6. Step 6: Final answer
   x = 12,126.18