Finding the Fourth Proportional to 11,815.82, 17,728.05 and 4,025.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,815.82 : 17,728.05 = 4,025.42 : x
2. Step 2: Convert to fraction form
   11,815.82/17,728.05 = 4,025.42/x
3. Step 3: Cross multiply
   11,815.82x = 17,728.05 × 4,025.42
4. Step 4: Simplify right side
   11,815.82x = 71,362,847.03
5. Step 5: Solve for x
   x = 71,362,847.03/11,815.82
6. Step 6: Final answer
   x = 6,039.60