Finding the Fourth Proportional to 12,709.94, 17,540.82 and 7,404.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,709.94 : 17,540.82 = 7,404.64 : x
2. Step 2: Convert to fraction form
   12,709.94/17,540.82 = 7,404.64/x
3. Step 3: Cross multiply
   12,709.94x = 17,540.82 × 7,404.64
4. Step 4: Simplify right side
   12,709.94x = 129,883,413.55
5. Step 5: Solve for x
   x = 129,883,413.55/12,709.94
6. Step 6: Final answer
   x = 10,219.05