Finding the Fourth Proportional to 9,955.59, 13,738.59 and 5,479.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,955.59 : 13,738.59 = 5,479.53 : x
2. Step 2: Convert to fraction form
   9,955.59/13,738.59 = 5,479.53/x
3. Step 3: Cross multiply
   9,955.59x = 13,738.59 × 5,479.53
4. Step 4: Simplify right side
   9,955.59x = 75,281,016.06
5. Step 5: Solve for x
   x = 75,281,016.06/9,955.59
6. Step 6: Final answer
   x = 7,561.68