Finding the Fourth Proportional to 12,755.59, 17,603.04 and 7,012.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,755.59 : 17,603.04 = 7,012.97 : x
2. Step 2: Convert to fraction form
   12,755.59/17,603.04 = 7,012.97/x
3. Step 3: Cross multiply
   12,755.59x = 17,603.04 × 7,012.97
4. Step 4: Simplify right side
   12,755.59x = 123,449,556.36
5. Step 5: Solve for x
   x = 123,449,556.36/12,755.59
6. Step 6: Final answer
   x = 9,678.08