Finding the Fourth Proportional to 9,570.17, 13,208.06 and 5,378.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,570.17 : 13,208.06 = 5,378.42 : x
2. Step 2: Convert to fraction form
   9,570.17/13,208.06 = 5,378.42/x
3. Step 3: Cross multiply
   9,570.17x = 13,208.06 × 5,378.42
4. Step 4: Simplify right side
   9,570.17x = 71,038,494.07
5. Step 5: Solve for x
   x = 71,038,494.07/9,570.17
6. Step 6: Final answer
   x = 7,422.91