Finding the Fourth Proportional to 9,617.69, 13,272.43 and 5,425.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,617.69 : 13,272.43 = 5,425.94 : x
2. Step 2: Convert to fraction form
   9,617.69/13,272.43 = 5,425.94/x
3. Step 3: Cross multiply
   9,617.69x = 13,272.43 × 5,425.94
4. Step 4: Simplify right side
   9,617.69x = 72,015,408.83
5. Step 5: Solve for x
   x = 72,015,408.83/9,617.69
6. Step 6: Final answer
   x = 7,487.81