Finding the Fourth Proportional to 21,803.27, 30,088.12 and 12,243.23

Step by Step Solution

1. Step 1: Write the proportion equation
   21,803.27 : 30,088.12 = 12,243.23 : x
2. Step 2: Convert to fraction form
   21,803.27/30,088.12 = 12,243.23/x
3. Step 3: Cross multiply
   21,803.27x = 30,088.12 × 12,243.23
4. Step 4: Simplify right side
   21,803.27x = 368,375,561.77
5. Step 5: Solve for x
   x = 368,375,561.77/21,803.27
6. Step 6: Final answer
   x = 16,895.43