Finding the Fourth Proportional to 12,288.92, 16,958.76 and 7,184.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,288.92 : 16,958.76 = 7,184.72 : x
2. Step 2: Convert to fraction form
   12,288.92/16,958.76 = 7,184.72/x
3. Step 3: Cross multiply
   12,288.92x = 16,958.76 × 7,184.72
4. Step 4: Simplify right side
   12,288.92x = 121,843,942.15
5. Step 5: Solve for x
   x = 121,843,942.15/12,288.92
6. Step 6: Final answer
   x = 9,914.94