Finding the Fourth Proportional to 12,746.49, 17,589.56 and 7,081.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,746.49 : 17,589.56 = 7,081.60 : x
2. Step 2: Convert to fraction form
   12,746.49/17,589.56 = 7,081.60/x
3. Step 3: Cross multiply
   12,746.49x = 17,589.56 × 7,081.60
4. Step 4: Simplify right side
   12,746.49x = 124,562,192.69
5. Step 5: Solve for x
   x = 124,562,192.69/12,746.49
6. Step 6: Final answer
   x = 9,772.28