Finding the Fourth Proportional to 6,323.78, 8,726.81 and 3,529.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,323.78 : 8,726.81 = 3,529.28 : x
2. Step 2: Convert to fraction form
   6,323.78/8,726.81 = 3,529.28/x
3. Step 3: Cross multiply
   6,323.78x = 8,726.81 × 3,529.28
4. Step 4: Simplify right side
   6,323.78x = 30,799,356.00
5. Step 5: Solve for x
   x = 30,799,356.00/6,323.78
6. Step 6: Final answer
   x = 4,870.40