Finding the Fourth Proportional to 6,078.56, 8,384.24 and 3,721.86

Step by Step Solution

1. Step 1: Write the proportion equation
   6,078.56 : 8,384.24 = 3,721.86 : x
2. Step 2: Convert to fraction form
   6,078.56/8,384.24 = 3,721.86/x
3. Step 3: Cross multiply
   6,078.56x = 8,384.24 × 3,721.86
4. Step 4: Simplify right side
   6,078.56x = 31,204,976.79
5. Step 5: Solve for x
   x = 31,204,976.79/6,078.56
6. Step 6: Final answer
   x = 5,133.62