Finding the Fourth Proportional to 4,876.74, 6,726.69 and 3,105.54

Step by Step Solution

1. Step 1: Write the proportion equation
   4,876.74 : 6,726.69 = 3,105.54 : x
2. Step 2: Convert to fraction form
   4,876.74/6,726.69 = 3,105.54/x
3. Step 3: Cross multiply
   4,876.74x = 6,726.69 × 3,105.54
4. Step 4: Simplify right side
   4,876.74x = 20,890,004.86
5. Step 5: Solve for x
   x = 20,890,004.86/4,876.74
6. Step 6: Final answer
   x = 4,283.60