Finding the Fourth Proportional to 21,895.04, 30,216.69 and 12,463.61

Step by Step Solution

1. Step 1: Write the proportion equation
   21,895.04 : 30,216.69 = 12,463.61 : x
2. Step 2: Convert to fraction form
   21,895.04/30,216.69 = 12,463.61/x
3. Step 3: Cross multiply
   21,895.04x = 30,216.69 × 12,463.61
4. Step 4: Simplify right side
   21,895.04x = 376,608,888.57
5. Step 5: Solve for x
   x = 376,608,888.57/21,895.04
6. Step 6: Final answer
   x = 17,200.65