Finding the Fourth Proportional to 12,355.06, 17,049.72 and 7,049.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,355.06 : 17,049.72 = 7,049.38 : x
2. Step 2: Convert to fraction form
   12,355.06/17,049.72 = 7,049.38/x
3. Step 3: Cross multiply
   12,355.06x = 17,049.72 × 7,049.38
4. Step 4: Simplify right side
   12,355.06x = 120,189,955.17
5. Step 5: Solve for x
   x = 120,189,955.17/12,355.06
6. Step 6: Final answer
   x = 9,727.99