Finding the Fourth Proportional to 12,730.50, 17,566.61 and 7,425.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,730.50 : 17,566.61 = 7,425.14 : x
2. Step 2: Convert to fraction form
   12,730.50/17,566.61 = 7,425.14/x
3. Step 3: Cross multiply
   12,730.50x = 17,566.61 × 7,425.14
4. Step 4: Simplify right side
   12,730.50x = 130,434,413.62
5. Step 5: Solve for x
   x = 130,434,413.62/12,730.50
6. Step 6: Final answer
   x = 10,245.82