Finding the Fourth Proportional to 21,884.72, 30,200.84 and 11,948.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,884.72 : 30,200.84 = 11,948.72 : x
2. Step 2: Convert to fraction form
   21,884.72/30,200.84 = 11,948.72/x
3. Step 3: Cross multiply
   21,884.72x = 30,200.84 × 11,948.72
4. Step 4: Simplify right side
   21,884.72x = 360,861,380.92
5. Step 5: Solve for x
   x = 360,861,380.92/21,884.72
6. Step 6: Final answer
   x = 16,489.19