Finding the Fourth Proportional to 9,615.34, 13,268.79 and 5,366.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,615.34 : 13,268.79 = 5,366.18 : x
2. Step 2: Convert to fraction form
   9,615.34/13,268.79 = 5,366.18/x
3. Step 3: Cross multiply
   9,615.34x = 13,268.79 × 5,366.18
4. Step 4: Simplify right side
   9,615.34x = 71,202,715.52
5. Step 5: Solve for x
   x = 71,202,715.52/9,615.34
6. Step 6: Final answer
   x = 7,405.12