Finding the Fourth Proportional to 6,153.81, 8,495.06 and 3,918.71

Step by Step Solution

1. Step 1: Write the proportion equation
   6,153.81 : 8,495.06 = 3,918.71 : x
2. Step 2: Convert to fraction form
   6,153.81/8,495.06 = 3,918.71/x
3. Step 3: Cross multiply
   6,153.81x = 8,495.06 × 3,918.71
4. Step 4: Simplify right side
   6,153.81x = 33,289,614.50
5. Step 5: Solve for x
   x = 33,289,614.50/6,153.81
6. Step 6: Final answer
   x = 5,409.59