Finding the Fourth Proportional to 9,543.47, 13,169.94 and 5,351.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,543.47 : 13,169.94 = 5,351.72 : x
2. Step 2: Convert to fraction form
   9,543.47/13,169.94 = 5,351.72/x
3. Step 3: Cross multiply
   9,543.47x = 13,169.94 × 5,351.72
4. Step 4: Simplify right side
   9,543.47x = 70,481,831.30
5. Step 5: Solve for x
   x = 70,481,831.30/9,543.47
6. Step 6: Final answer
   x = 7,385.35