Finding the Fourth Proportional to 13,871.09, 19,136.72 and 8,834.41

Step by Step Solution

1. Step 1: Write the proportion equation
   13,871.09 : 19,136.72 = 8,834.41 : x
2. Step 2: Convert to fraction form
   13,871.09/19,136.72 = 8,834.41/x
3. Step 3: Cross multiply
   13,871.09x = 19,136.72 × 8,834.41
4. Step 4: Simplify right side
   13,871.09x = 169,061,490.68
5. Step 5: Solve for x
   x = 169,061,490.68/13,871.09
6. Step 6: Final answer
   x = 12,188.05