Finding the Fourth Proportional to 9,641.90, 13,304.69 and 5,393.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,641.90 : 13,304.69 = 5,393.18 : x
2. Step 2: Convert to fraction form
   9,641.90/13,304.69 = 5,393.18/x
3. Step 3: Cross multiply
   9,641.90x = 13,304.69 × 5,393.18
4. Step 4: Simplify right side
   9,641.90x = 71,754,614.53
5. Step 5: Solve for x
   x = 71,754,614.53/9,641.90
6. Step 6: Final answer
   x = 7,441.96