Finding the Fourth Proportional to 8,749.44, 12,072.96 and 5,022.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,749.44 : 12,072.96 = 5,022.72 : x
2. Step 2: Convert to fraction form
   8,749.44/12,072.96 = 5,022.72/x
3. Step 3: Cross multiply
   8,749.44x = 12,072.96 × 5,022.72
4. Step 4: Simplify right side
   8,749.44x = 60,639,097.65
5. Step 5: Solve for x
   x = 60,639,097.65/8,749.44
6. Step 6: Final answer
   x = 6,930.63