Finding the Fourth Proportional to 12,708.89, 17,538.27 and 7,119.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,708.89 : 17,538.27 = 7,119.89 : x
2. Step 2: Convert to fraction form
   12,708.89/17,538.27 = 7,119.89/x
3. Step 3: Cross multiply
   12,708.89x = 17,538.27 × 7,119.89
4. Step 4: Simplify right side
   12,708.89x = 124,870,597.04
5. Step 5: Solve for x
   x = 124,870,597.04/12,708.89
6. Step 6: Final answer
   x = 9,825.45