Finding the Fourth Proportional to 21,503.82, 32,282.04 and 12,150.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,503.82 : 32,282.04 = 12,150.42 : x
2. Step 2: Convert to fraction form
   21,503.82/32,282.04 = 12,150.42/x
3. Step 3: Cross multiply
   21,503.82x = 32,282.04 × 12,150.42
4. Step 4: Simplify right side
   21,503.82x = 392,240,344.46
5. Step 5: Solve for x
   x = 392,240,344.46/21,503.82
6. Step 6: Final answer
   x = 18,240.50