Finding the Fourth Proportional to 9,572.16, 13,209.58 and 5,380.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,572.16 : 13,209.58 = 5,380.41 : x
2. Step 2: Convert to fraction form
   9,572.16/13,209.58 = 5,380.41/x
3. Step 3: Cross multiply
   9,572.16x = 13,209.58 × 5,380.41
4. Step 4: Simplify right side
   9,572.16x = 71,072,942.88
5. Step 5: Solve for x
   x = 71,072,942.88/9,572.16
6. Step 6: Final answer
   x = 7,424.96