Finding the Fourth Proportional to 8,550.94, 12,823.98 and 5,426.23

Step by Step Solution

1. Step 1: Write the proportion equation
   8,550.94 : 12,823.98 = 5,426.23 : x
2. Step 2: Convert to fraction form
   8,550.94/12,823.98 = 5,426.23/x
3. Step 3: Cross multiply
   8,550.94x = 12,823.98 × 5,426.23
4. Step 4: Simplify right side
   8,550.94x = 69,585,865.00
5. Step 5: Solve for x
   x = 69,585,865.00/8,550.94
6. Step 6: Final answer
   x = 8,137.80