Finding the Fourth Proportional to 12,694.52, 17,517.86 and 7,028.87

Step by Step Solution

1. Step 1: Write the proportion equation
   12,694.52 : 17,517.86 = 7,028.87 : x
2. Step 2: Convert to fraction form
   12,694.52/17,517.86 = 7,028.87/x
3. Step 3: Cross multiply
   12,694.52x = 17,517.86 × 7,028.87
4. Step 4: Simplify right side
   12,694.52x = 123,130,760.62
5. Step 5: Solve for x
   x = 123,130,760.62/12,694.52
6. Step 6: Final answer
   x = 9,699.52