Finding the Fourth Proportional to 6,667.31, 10,004.21 and 4,471.71

Step by Step Solution

1. Step 1: Write the proportion equation
   6,667.31 : 10,004.21 = 4,471.71 : x
2. Step 2: Convert to fraction form
   6,667.31/10,004.21 = 4,471.71/x
3. Step 3: Cross multiply
   6,667.31x = 10,004.21 × 4,471.71
4. Step 4: Simplify right side
   6,667.31x = 44,735,882.79
5. Step 5: Solve for x
   x = 44,735,882.79/6,667.31
6. Step 6: Final answer
   x = 6,709.73