Finding the Fourth Proportional to 9,572.37, 13,209.75 and 5,380.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,572.37 : 13,209.75 = 5,380.62 : x
2. Step 2: Convert to fraction form
   9,572.37/13,209.75 = 5,380.62/x
3. Step 3: Cross multiply
   9,572.37x = 13,209.75 × 5,380.62
4. Step 4: Simplify right side
   9,572.37x = 71,076,645.05
5. Step 5: Solve for x
   x = 71,076,645.05/9,572.37
6. Step 6: Final answer
   x = 7,425.19