Finding the Fourth Proportional to 8,172.43, 12,253.37 and 3,495.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,172.43 : 12,253.37 = 3,495.49 : x
2. Step 2: Convert to fraction form
   8,172.43/12,253.37 = 3,495.49/x
3. Step 3: Cross multiply
   8,172.43x = 12,253.37 × 3,495.49
4. Step 4: Simplify right side
   8,172.43x = 42,831,484.19
5. Step 5: Solve for x
   x = 42,831,484.19/8,172.43
6. Step 6: Final answer
   x = 5,240.97