Finding the Fourth Proportional to 12,151.41, 18,219.20 and 3,828.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,151.41 : 18,219.20 = 3,828.93 : x
2. Step 2: Convert to fraction form
   12,151.41/18,219.20 = 3,828.93/x
3. Step 3: Cross multiply
   12,151.41x = 18,219.20 × 3,828.93
4. Step 4: Simplify right side
   12,151.41x = 69,760,022.31
5. Step 5: Solve for x
   x = 69,760,022.31/12,151.41
6. Step 6: Final answer
   x = 5,740.90