Finding the Fourth Proportional to 9,569.74, 13,206.42 and 5,321.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,569.74 : 13,206.42 = 5,321.15 : x
2. Step 2: Convert to fraction form
   9,569.74/13,206.42 = 5,321.15/x
3. Step 3: Cross multiply
   9,569.74x = 13,206.42 × 5,321.15
4. Step 4: Simplify right side
   9,569.74x = 70,273,341.78
5. Step 5: Solve for x
   x = 70,273,341.78/9,569.74
6. Step 6: Final answer
   x = 7,343.29