Finding the Fourth Proportional to 16,289.34, 22,459.59 and 13,767

Step by Step Solution

1. Step 1: Write the proportion equation
   16,289.34 : 22,459.59 = 13,767 : x
2. Step 2: Convert to fraction form
   16,289.34/22,459.59 = 13,767/x
3. Step 3: Cross multiply
   16,289.34x = 22,459.59 × 13,767
4. Step 4: Simplify right side
   16,289.34x = 309,201,175.53
5. Step 5: Solve for x
   x = 309,201,175.53/16,289.34
6. Step 6: Final answer
   x = 18,981.81