Finding the Fourth Proportional to 6,105.51, 8,427.20 and 3,868.47

Step by Step Solution

1. Step 1: Write the proportion equation
   6,105.51 : 8,427.20 = 3,868.47 : x
2. Step 2: Convert to fraction form
   6,105.51/8,427.20 = 3,868.47/x
3. Step 3: Cross multiply
   6,105.51x = 8,427.20 × 3,868.47
4. Step 4: Simplify right side
   6,105.51x = 32,600,351.04
5. Step 5: Solve for x
   x = 32,600,351.04/6,105.51
6. Step 6: Final answer
   x = 5,339.50