Finding the Fourth Proportional to 9,055.94, 12,496.68 and 5,279.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,055.94 : 12,496.68 = 5,279.72 : x
2. Step 2: Convert to fraction form
   9,055.94/12,496.68 = 5,279.72/x
3. Step 3: Cross multiply
   9,055.94x = 12,496.68 × 5,279.72
4. Step 4: Simplify right side
   9,055.94x = 65,978,908.85
5. Step 5: Solve for x
   x = 65,978,908.85/9,055.94
6. Step 6: Final answer
   x = 7,285.71