Finding the Fourth Proportional to 12,171.34, 18,258.80 and 3,849.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,171.34 : 18,258.80 = 3,849.46 : x
2. Step 2: Convert to fraction form
   12,171.34/18,258.80 = 3,849.46/x
3. Step 3: Cross multiply
   12,171.34x = 18,258.80 × 3,849.46
4. Step 4: Simplify right side
   12,171.34x = 70,286,520.25
5. Step 5: Solve for x
   x = 70,286,520.25/12,171.34
6. Step 6: Final answer
   x = 5,774.76