Finding the Fourth Proportional to 16,895.84, 23,315.54 and 9,821.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,895.84 : 23,315.54 = 9,821.72 : x
2. Step 2: Convert to fraction form
   16,895.84/23,315.54 = 9,821.72/x
3. Step 3: Cross multiply
   16,895.84x = 23,315.54 × 9,821.72
4. Step 4: Simplify right side
   16,895.84x = 228,998,705.53
5. Step 5: Solve for x
   x = 228,998,705.53/16,895.84
6. Step 6: Final answer
   x = 13,553.56