Finding the Fourth Proportional to 6,800.72, 9,386.16 and 4,006.76

Step by Step Solution

1. Step 1: Write the proportion equation
   6,800.72 : 9,386.16 = 4,006.76 : x
2. Step 2: Convert to fraction form
   6,800.72/9,386.16 = 4,006.76/x
3. Step 3: Cross multiply
   6,800.72x = 9,386.16 × 4,006.76
4. Step 4: Simplify right side
   6,800.72x = 37,608,090.44
5. Step 5: Solve for x
   x = 37,608,090.44/6,800.72
6. Step 6: Final answer
   x = 5,530.02