Finding the Fourth Proportional to 21,986.50, 30,341.37 and 12,050.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,986.50 : 30,341.37 = 12,050.50 : x
2. Step 2: Convert to fraction form
   21,986.50/30,341.37 = 12,050.50/x
3. Step 3: Cross multiply
   21,986.50x = 30,341.37 × 12,050.50
4. Step 4: Simplify right side
   21,986.50x = 365,628,679.19
5. Step 5: Solve for x
   x = 365,628,679.19/21,986.50
6. Step 6: Final answer
   x = 16,629.69