Finding the Fourth Proportional to 12,146.76, 18,217.71 and 3,825.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,146.76 : 18,217.71 = 3,825.63 : x
2. Step 2: Convert to fraction form
   12,146.76/18,217.71 = 3,825.63/x
3. Step 3: Cross multiply
   12,146.76x = 18,217.71 × 3,825.63
4. Step 4: Simplify right side
   12,146.76x = 69,694,217.91
5. Step 5: Solve for x
   x = 69,694,217.91/12,146.76
6. Step 6: Final answer
   x = 5,737.68