Finding the Fourth Proportional to 8,015.38, 11,061.42 and 4,478.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,015.38 : 11,061.42 = 4,478.82 : x
2. Step 2: Convert to fraction form
   8,015.38/11,061.42 = 4,478.82/x
3. Step 3: Cross multiply
   8,015.38x = 11,061.42 × 4,478.82
4. Step 4: Simplify right side
   8,015.38x = 49,542,109.12
5. Step 5: Solve for x
   x = 49,542,109.12/8,015.38
6. Step 6: Final answer
   x = 6,180.88