Finding the Fourth Proportional to 9,570.27, 13,206.46 and 5,378.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,570.27 : 13,206.46 = 5,378.25 : x
2. Step 2: Convert to fraction form
   9,570.27/13,206.46 = 5,378.25/x
3. Step 3: Cross multiply
   9,570.27x = 13,206.46 × 5,378.25
4. Step 4: Simplify right side
   9,570.27x = 71,027,643.50
5. Step 5: Solve for x
   x = 71,027,643.50/9,570.27
6. Step 6: Final answer
   x = 7,421.70