Finding the Fourth Proportional to 12,723.97, 17,559.05 and 7,059.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,723.97 : 17,559.05 = 7,059.58 : x
2. Step 2: Convert to fraction form
   12,723.97/17,559.05 = 7,059.58/x
3. Step 3: Cross multiply
   12,723.97x = 17,559.05 × 7,059.58
4. Step 4: Simplify right side
   12,723.97x = 123,959,478.71
5. Step 5: Solve for x
   x = 123,959,478.71/12,723.97
6. Step 6: Final answer
   x = 9,742.20