Finding the Fourth Proportional to 4,429.54, 6,105.27 and 3,100.87

Step by Step Solution

1. Step 1: Write the proportion equation
   4,429.54 : 6,105.27 = 3,100.87 : x
2. Step 2: Convert to fraction form
   4,429.54/6,105.27 = 3,100.87/x
3. Step 3: Cross multiply
   4,429.54x = 6,105.27 × 3,100.87
4. Step 4: Simplify right side
   4,429.54x = 18,931,648.58
5. Step 5: Solve for x
   x = 18,931,648.58/4,429.54
6. Step 6: Final answer
   x = 4,273.95