Finding the Fourth Proportional to 6,730.72, 9,289.06 and 4,079.99

Step by Step Solution

1. Step 1: Write the proportion equation
   6,730.72 : 9,289.06 = 4,079.99 : x
2. Step 2: Convert to fraction form
   6,730.72/9,289.06 = 4,079.99/x
3. Step 3: Cross multiply
   6,730.72x = 9,289.06 × 4,079.99
4. Step 4: Simplify right side
   6,730.72x = 37,899,284.93
5. Step 5: Solve for x
   x = 37,899,284.93/6,730.72
6. Step 6: Final answer
   x = 5,630.79