Finding the Fourth Proportional to 12,175.89, 18,256.89 and 3,858

Step by Step Solution

1. Step 1: Write the proportion equation
   12,175.89 : 18,256.89 = 3,858 : x
2. Step 2: Convert to fraction form
   12,175.89/18,256.89 = 3,858/x
3. Step 3: Cross multiply
   12,175.89x = 18,256.89 × 3,858
4. Step 4: Simplify right side
   12,175.89x = 70,435,081.62
5. Step 5: Solve for x
   x = 70,435,081.62/12,175.89
6. Step 6: Final answer
   x = 5,784.80