Finding the Fourth Proportional to 12,196.29, 18,295.92 and 3,876.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.29 : 18,295.92 = 3,876.78 : x
2. Step 2: Convert to fraction form
   12,196.29/18,295.92 = 3,876.78/x
3. Step 3: Cross multiply
   12,196.29x = 18,295.92 × 3,876.78
4. Step 4: Simplify right side
   12,196.29x = 70,929,256.74
5. Step 5: Solve for x
   x = 70,929,256.74/12,196.29
6. Step 6: Final answer
   x = 5,815.64