Finding the Fourth Proportional to 12,485.37, 17,229.41 and 7,107.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,485.37 : 17,229.41 = 7,107.48 : x
2. Step 2: Convert to fraction form
   12,485.37/17,229.41 = 7,107.48/x
3. Step 3: Cross multiply
   12,485.37x = 17,229.41 × 7,107.48
4. Step 4: Simplify right side
   12,485.37x = 122,457,678.10
5. Step 5: Solve for x
   x = 122,457,678.10/12,485.37
6. Step 6: Final answer
   x = 9,808.09