Finding the Fourth Proportional to 8,728.94, 12,043.83 and 5,144.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,728.94 : 12,043.83 = 5,144.04 : x
2. Step 2: Convert to fraction form
   8,728.94/12,043.83 = 5,144.04/x
3. Step 3: Cross multiply
   8,728.94x = 12,043.83 × 5,144.04
4. Step 4: Simplify right side
   8,728.94x = 61,953,964.76
5. Step 5: Solve for x
   x = 61,953,964.76/8,728.94
6. Step 6: Final answer
   x = 7,097.54