Finding the Fourth Proportional to 12,694.04, 17,517.78 and 7,105

Step by Step Solution

1. Step 1: Write the proportion equation
   12,694.04 : 17,517.78 = 7,105 : x
2. Step 2: Convert to fraction form
   12,694.04/17,517.78 = 7,105/x
3. Step 3: Cross multiply
   12,694.04x = 17,517.78 × 7,105
4. Step 4: Simplify right side
   12,694.04x = 124,463,826.90
5. Step 5: Solve for x
   x = 124,463,826.90/12,694.04
6. Step 6: Final answer
   x = 9,804.90