Finding the Fourth Proportional to 21,895.29, 30,217.04 and 12,463.86

Step by Step Solution

1. Step 1: Write the proportion equation
   21,895.29 : 30,217.04 = 12,463.86 : x
2. Step 2: Convert to fraction form
   21,895.29/30,217.04 = 12,463.86/x
3. Step 3: Cross multiply
   21,895.29x = 30,217.04 × 12,463.86
4. Step 4: Simplify right side
   21,895.29x = 376,620,742.77
5. Step 5: Solve for x
   x = 376,620,742.77/21,895.29
6. Step 6: Final answer
   x = 17,200.99