Finding the Fourth Proportional to 21,897.27, 30,216.42 and 12,334.11

Step by Step Solution

1. Step 1: Write the proportion equation
   21,897.27 : 30,216.42 = 12,334.11 : x
2. Step 2: Convert to fraction form
   21,897.27/30,216.42 = 12,334.11/x
3. Step 3: Cross multiply
   21,897.27x = 30,216.42 × 12,334.11
4. Step 4: Simplify right side
   21,897.27x = 372,692,500.08
5. Step 5: Solve for x
   x = 372,692,500.08/21,897.27
6. Step 6: Final answer
   x = 17,020.04