Finding the Fourth Proportional to 36,340.37, 50,145.69 and 21,803.78

Step by Step Solution

1. Step 1: Write the proportion equation
   36,340.37 : 50,145.69 = 21,803.78 : x
2. Step 2: Convert to fraction form
   36,340.37/50,145.69 = 21,803.78/x
3. Step 3: Cross multiply
   36,340.37x = 50,145.69 × 21,803.78
4. Step 4: Simplify right side
   36,340.37x = 1,093,365,592.71
5. Step 5: Solve for x
   x = 1,093,365,592.71/36,340.37
6. Step 6: Final answer
   x = 30,086.81