Finding the Fourth Proportional to 9,615.34, 13,269.18 and 5,423.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,615.34 : 13,269.18 = 5,423.59 : x
2. Step 2: Convert to fraction form
   9,615.34/13,269.18 = 5,423.59/x
3. Step 3: Cross multiply
   9,615.34x = 13,269.18 × 5,423.59
4. Step 4: Simplify right side
   9,615.34x = 71,966,591.96
5. Step 5: Solve for x
   x = 71,966,591.96/9,615.34
6. Step 6: Final answer
   x = 7,484.56