Finding the Fourth Proportional to 9,615.96, 13,269.24 and 5,424.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,615.96 : 13,269.24 = 5,424.84 : x
2. Step 2: Convert to fraction form
   9,615.96/13,269.24 = 5,424.84/x
3. Step 3: Cross multiply
   9,615.96x = 13,269.24 × 5,424.84
4. Step 4: Simplify right side
   9,615.96x = 71,983,503.92
5. Step 5: Solve for x
   x = 71,983,503.92/9,615.96
6. Step 6: Final answer
   x = 7,485.84