Finding the Fourth Proportional to 8,550.94, 12,821.95 and 3,868.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,550.94 : 12,821.95 = 3,868.72 : x
2. Step 2: Convert to fraction form
   8,550.94/12,821.95 = 3,868.72/x
3. Step 3: Cross multiply
   8,550.94x = 12,821.95 × 3,868.72
4. Step 4: Simplify right side
   8,550.94x = 49,604,534.40
5. Step 5: Solve for x
   x = 49,604,534.40/8,550.94
6. Step 6: Final answer
   x = 5,801.06