Finding the Fourth Proportional to 9,457.20, 13,049.78 and 5,477.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,457.20 : 13,049.78 = 5,477.49 : x
2. Step 2: Convert to fraction form
   9,457.20/13,049.78 = 5,477.49/x
3. Step 3: Cross multiply
   9,457.20x = 13,049.78 × 5,477.49
4. Step 4: Simplify right side
   9,457.20x = 71,480,012.06
5. Step 5: Solve for x
   x = 71,480,012.06/9,457.20
6. Step 6: Final answer
   x = 7,558.26