Finding the Fourth Proportional to 12,068.51, 18,105.18 and 4,171.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,068.51 : 18,105.18 = 4,171.31 : x
2. Step 2: Convert to fraction form
   12,068.51/18,105.18 = 4,171.31/x
3. Step 3: Cross multiply
   12,068.51x = 18,105.18 × 4,171.31
4. Step 4: Simplify right side
   12,068.51x = 75,522,318.39
5. Step 5: Solve for x
   x = 75,522,318.39/12,068.51
6. Step 6: Final answer
   x = 6,257.80