Finding the Fourth Proportional to 9,943.37, 13,721.86 and 5,467.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,943.37 : 13,721.86 = 5,467.20 : x
2. Step 2: Convert to fraction form
   9,943.37/13,721.86 = 5,467.20/x
3. Step 3: Cross multiply
   9,943.37x = 13,721.86 × 5,467.20
4. Step 4: Simplify right side
   9,943.37x = 75,020,118.69
5. Step 5: Solve for x
   x = 75,020,118.69/9,943.37
6. Step 6: Final answer
   x = 7,544.74