Finding the Fourth Proportional to 8,606.94, 12,907.22 and 5,097.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,606.94 : 12,907.22 = 5,097.72 : x
2. Step 2: Convert to fraction form
   8,606.94/12,907.22 = 5,097.72/x
3. Step 3: Cross multiply
   8,606.94x = 12,907.22 × 5,097.72
4. Step 4: Simplify right side
   8,606.94x = 65,797,393.54
5. Step 5: Solve for x
   x = 65,797,393.54/8,606.94
6. Step 6: Final answer
   x = 7,644.69