Finding the Fourth Proportional to 12,559.47, 17,332.61 and 7,522.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,559.47 : 17,332.61 = 7,522.73 : x
2. Step 2: Convert to fraction form
   12,559.47/17,332.61 = 7,522.73/x
3. Step 3: Cross multiply
   12,559.47x = 17,332.61 × 7,522.73
4. Step 4: Simplify right side
   12,559.47x = 130,388,550.94
5. Step 5: Solve for x
   x = 130,388,550.94/12,559.47
6. Step 6: Final answer
   x = 10,381.69