Finding the Fourth Proportional to 12,724.69, 17,560.08 and 7,059.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,724.69 : 17,560.08 = 7,059.43 : x
2. Step 2: Convert to fraction form
   12,724.69/17,560.08 = 7,059.43/x
3. Step 3: Cross multiply
   12,724.69x = 17,560.08 × 7,059.43
4. Step 4: Simplify right side
   12,724.69x = 123,964,155.55
5. Step 5: Solve for x
   x = 123,964,155.55/12,724.69
6. Step 6: Final answer
   x = 9,742.02