Finding the Fourth Proportional to 12,724.47, 17,559.65 and 7,059.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,724.47 : 17,559.65 = 7,059.24 : x
2. Step 2: Convert to fraction form
   12,724.47/17,559.65 = 7,059.24/x
3. Step 3: Cross multiply
   12,724.47x = 17,559.65 × 7,059.24
4. Step 4: Simplify right side
   12,724.47x = 123,957,748.37
5. Step 5: Solve for x
   x = 123,957,748.37/12,724.47
6. Step 6: Final answer
   x = 9,741.68