Finding the Fourth Proportional to 9,613.71, 13,266.32 and 5,365.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,613.71 : 13,266.32 = 5,365.40 : x
2. Step 2: Convert to fraction form
   9,613.71/13,266.32 = 5,365.40/x
3. Step 3: Cross multiply
   9,613.71x = 13,266.32 × 5,365.40
4. Step 4: Simplify right side
   9,613.71x = 71,179,020.17
5. Step 5: Solve for x
   x = 71,179,020.17/9,613.71
6. Step 6: Final answer
   x = 7,403.91