Finding the Fourth Proportional to 21,884.42, 30,200.46 and 11,948.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,884.42 : 30,200.46 = 11,948.42 : x
2. Step 2: Convert to fraction form
   21,884.42/30,200.46 = 11,948.42/x
3. Step 3: Cross multiply
   21,884.42x = 30,200.46 × 11,948.42
4. Step 4: Simplify right side
   21,884.42x = 360,847,780.27
5. Step 5: Solve for x
   x = 360,847,780.27/21,884.42
6. Step 6: Final answer
   x = 16,488.80