Finding the Fourth Proportional to 9,955.37, 13,738.41 and 5,479.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,955.37 : 13,738.41 = 5,479.12 : x
2. Step 2: Convert to fraction form
   9,955.37/13,738.41 = 5,479.12/x
3. Step 3: Cross multiply
   9,955.37x = 13,738.41 × 5,479.12
4. Step 4: Simplify right side
   9,955.37x = 75,274,328.31
5. Step 5: Solve for x
   x = 75,274,328.31/9,955.37
6. Step 6: Final answer
   x = 7,561.18