Finding the Fourth Proportional to 12,212.52, 16,856.46 and 7,738.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,212.52 : 16,856.46 = 7,738.44 : x
2. Step 2: Convert to fraction form
   12,212.52/16,856.46 = 7,738.44/x
3. Step 3: Cross multiply
   12,212.52x = 16,856.46 × 7,738.44
4. Step 4: Simplify right side
   12,212.52x = 130,442,704.32
5. Step 5: Solve for x
   x = 130,442,704.32/12,212.52
6. Step 6: Final answer
   x = 10,681.06