Finding the Fourth Proportional to 12,172.48, 18,258.84 and 3,852.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,172.48 : 18,258.84 = 3,852.34 : x
2. Step 2: Convert to fraction form
   12,172.48/18,258.84 = 3,852.34/x
3. Step 3: Cross multiply
   12,172.48x = 18,258.84 × 3,852.34
4. Step 4: Simplify right side
   12,172.48x = 70,339,259.69
5. Step 5: Solve for x
   x = 70,339,259.69/12,172.48
6. Step 6: Final answer
   x = 5,778.55