Finding the Fourth Proportional to 40,981.38, 56,578.41 and 38,619.42

Step by Step Solution

1. Step 1: Write the proportion equation
   40,981.38 : 56,578.41 = 38,619.42 : x
2. Step 2: Convert to fraction form
   40,981.38/56,578.41 = 38,619.42/x
3. Step 3: Cross multiply
   40,981.38x = 56,578.41 × 38,619.42
4. Step 4: Simplify right side
   40,981.38x = 2,185,025,378.72
5. Step 5: Solve for x
   x = 2,185,025,378.72/40,981.38
6. Step 6: Final answer
   x = 53,317.52