Finding the Fourth Proportional to 12,708.27, 17,536.94 and 7,042.87

Step by Step Solution

1. Step 1: Write the proportion equation
   12,708.27 : 17,536.94 = 7,042.87 : x
2. Step 2: Convert to fraction form
   12,708.27/17,536.94 = 7,042.87/x
3. Step 3: Cross multiply
   12,708.27x = 17,536.94 × 7,042.87
4. Step 4: Simplify right side
   12,708.27x = 123,510,388.62
5. Step 5: Solve for x
   x = 123,510,388.62/12,708.27
6. Step 6: Final answer
   x = 9,718.90