Finding the Fourth Proportional to 21,894.69, 30,214.71 and 12,463.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,894.69 : 30,214.71 = 12,463.25 : x
2. Step 2: Convert to fraction form
   21,894.69/30,214.71 = 12,463.25/x
3. Step 3: Cross multiply
   21,894.69x = 30,214.71 × 12,463.25
4. Step 4: Simplify right side
   21,894.69x = 376,573,484.41
5. Step 5: Solve for x
   x = 376,573,484.41/21,894.69
6. Step 6: Final answer
   x = 17,199.31