Finding the Fourth Proportional to 12,604.80, 17,394.62 and 7,017.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,604.80 : 17,394.62 = 7,017.12 : x
2. Step 2: Convert to fraction form
   12,604.80/17,394.62 = 7,017.12/x
3. Step 3: Cross multiply
   12,604.80x = 17,394.62 × 7,017.12
4. Step 4: Simplify right side
   12,604.80x = 122,060,135.89
5. Step 5: Solve for x
   x = 122,060,135.89/12,604.80
6. Step 6: Final answer
   x = 9,683.62