Finding the Fourth Proportional to 12,171.02, 18,258.33 and 3,849.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,171.02 : 18,258.33 = 3,849.15 : x
2. Step 2: Convert to fraction form
   12,171.02/18,258.33 = 3,849.15/x
3. Step 3: Cross multiply
   12,171.02x = 18,258.33 × 3,849.15
4. Step 4: Simplify right side
   12,171.02x = 70,279,050.92
5. Step 5: Solve for x
   x = 70,279,050.92/12,171.02
6. Step 6: Final answer
   x = 5,774.29