Finding the Fourth Proportional to 7,066.36, 10,580.10 and 5,329.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,066.36 : 10,580.10 = 5,329.72 : x
2. Step 2: Convert to fraction form
   7,066.36/10,580.10 = 5,329.72/x
3. Step 3: Cross multiply
   7,066.36x = 10,580.10 × 5,329.72
4. Step 4: Simplify right side
   7,066.36x = 56,388,970.57
5. Step 5: Solve for x
   x = 56,388,970.57/7,066.36
6. Step 6: Final answer
   x = 7,979.92