Finding the Fourth Proportional to 7,040.05, 9,715.72 and 4,055.83

Step by Step Solution

1. Step 1: Write the proportion equation
   7,040.05 : 9,715.72 = 4,055.83 : x
2. Step 2: Convert to fraction form
   7,040.05/9,715.72 = 4,055.83/x
3. Step 3: Cross multiply
   7,040.05x = 9,715.72 × 4,055.83
4. Step 4: Simplify right side
   7,040.05x = 39,405,308.65
5. Step 5: Solve for x
   x = 39,405,308.65/7,040.05
6. Step 6: Final answer
   x = 5,597.31