Finding the Fourth Proportional to 12,708.05, 17,535.44 and 7,042.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,708.05 : 17,535.44 = 7,042.52 : x
2. Step 2: Convert to fraction form
   12,708.05/17,535.44 = 7,042.52/x
3. Step 3: Cross multiply
   12,708.05x = 17,535.44 × 7,042.52
4. Step 4: Simplify right side
   12,708.05x = 123,493,686.91
5. Step 5: Solve for x
   x = 123,493,686.91/12,708.05
6. Step 6: Final answer
   x = 9,717.76