Finding the Fourth Proportional to 7,086.72, 10,649.52 and 4,321.38

Step by Step Solution

1. Step 1: Write the proportion equation
   7,086.72 : 10,649.52 = 4,321.38 : x
2. Step 2: Convert to fraction form
   7,086.72/10,649.52 = 4,321.38/x
3. Step 3: Cross multiply
   7,086.72x = 10,649.52 × 4,321.38
4. Step 4: Simplify right side
   7,086.72x = 46,020,622.74
5. Step 5: Solve for x
   x = 46,020,622.74/7,086.72
6. Step 6: Final answer
   x = 6,493.92