Finding the Fourth Proportional to 12,173.38, 18,260.72 and 3,854.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,173.38 : 18,260.72 = 3,854.28 : x
2. Step 2: Convert to fraction form
   12,173.38/18,260.72 = 3,854.28/x
3. Step 3: Cross multiply
   12,173.38x = 18,260.72 × 3,854.28
4. Step 4: Simplify right side
   12,173.38x = 70,381,817.31
5. Step 5: Solve for x
   x = 70,381,817.31/12,173.38
6. Step 6: Final answer
   x = 5,781.62