Finding the Fourth Proportional to 9,615.48, 13,269.31 and 5,366.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,615.48 : 13,269.31 = 5,366.89 : x
2. Step 2: Convert to fraction form
   9,615.48/13,269.31 = 5,366.89/x
3. Step 3: Cross multiply
   9,615.48x = 13,269.31 × 5,366.89
4. Step 4: Simplify right side
   9,615.48x = 71,214,927.15
5. Step 5: Solve for x
   x = 71,214,927.15/9,615.48
6. Step 6: Final answer
   x = 7,406.28