Finding the Fourth Proportional to 12,724.75, 17,560.03 and 7,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,724.75 : 17,560.03 = 7,059.50 : x
2. Step 2: Convert to fraction form
   12,724.75/17,560.03 = 7,059.50/x
3. Step 3: Cross multiply
   12,724.75x = 17,560.03 × 7,059.50
4. Step 4: Simplify right side
   12,724.75x = 123,965,031.79
5. Step 5: Solve for x
   x = 123,965,031.79/12,724.75
6. Step 6: Final answer
   x = 9,742.04