Finding the Fourth Proportional to 12,178.56, 16,806.72 and 7,465.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,178.56 : 16,806.72 = 7,465.44 : x
2. Step 2: Convert to fraction form
   12,178.56/16,806.72 = 7,465.44/x
3. Step 3: Cross multiply
   12,178.56x = 16,806.72 × 7,465.44
4. Step 4: Simplify right side
   12,178.56x = 125,469,559.76
5. Step 5: Solve for x
   x = 125,469,559.76/12,178.56
6. Step 6: Final answer
   x = 10,302.50