Finding the Fourth Proportional to 7,064.50, 9,749.01 and 3,921.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,064.50 : 9,749.01 = 3,921.31 : x
2. Step 2: Convert to fraction form
   7,064.50/9,749.01 = 3,921.31/x
3. Step 3: Cross multiply
   7,064.50x = 9,749.01 × 3,921.31
4. Step 4: Simplify right side
   7,064.50x = 38,228,890.40
5. Step 5: Solve for x
   x = 38,228,890.40/7,064.50
6. Step 6: Final answer
   x = 5,411.41