Finding the Fourth Proportional to 8,964.10, 12,367.20 and 5,426.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,964.10 : 12,367.20 = 5,426.02 : x
2. Step 2: Convert to fraction form
   8,964.10/12,367.20 = 5,426.02/x
3. Step 3: Cross multiply
   8,964.10x = 12,367.20 × 5,426.02
4. Step 4: Simplify right side
   8,964.10x = 67,104,674.54
5. Step 5: Solve for x
   x = 67,104,674.54/8,964.10
6. Step 6: Final answer
   x = 7,485.94