Finding the Fourth Proportional to 9,739.58, 13,441.92 and 5,491.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,739.58 : 13,441.92 = 5,491.47 : x
2. Step 2: Convert to fraction form
   9,739.58/13,441.92 = 5,491.47/x
3. Step 3: Cross multiply
   9,739.58x = 13,441.92 × 5,491.47
4. Step 4: Simplify right side
   9,739.58x = 73,815,900.42
5. Step 5: Solve for x
   x = 73,815,900.42/9,739.58
6. Step 6: Final answer
   x = 7,578.97