Finding the Fourth Proportional to 9,643.37, 13,308.64 and 5,394.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,643.37 : 13,308.64 = 5,394.78 : x
2. Step 2: Convert to fraction form
   9,643.37/13,308.64 = 5,394.78/x
3. Step 3: Cross multiply
   9,643.37x = 13,308.64 × 5,394.78
4. Step 4: Simplify right side
   9,643.37x = 71,797,171.41
5. Step 5: Solve for x
   x = 71,797,171.41/9,643.37
6. Step 6: Final answer
   x = 7,445.24