Finding the Fourth Proportional to 6,764.47, 10,139.86 and 3,249.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,764.47 : 10,139.86 = 3,249.34 : x
2. Step 2: Convert to fraction form
   6,764.47/10,139.86 = 3,249.34/x
3. Step 3: Cross multiply
   6,764.47x = 10,139.86 × 3,249.34
4. Step 4: Simplify right side
   6,764.47x = 32,947,852.69
5. Step 5: Solve for x
   x = 32,947,852.69/6,764.47
6. Step 6: Final answer
   x = 4,870.72