Finding the Fourth Proportional to 13,801.62, 19,048.72 and 8,136.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,801.62 : 19,048.72 = 8,136.03 : x
2. Step 2: Convert to fraction form
   13,801.62/19,048.72 = 8,136.03/x
3. Step 3: Cross multiply
   13,801.62x = 19,048.72 × 8,136.03
4. Step 4: Simplify right side
   13,801.62x = 154,980,937.04
5. Step 5: Solve for x
   x = 154,980,937.04/13,801.62
6. Step 6: Final answer
   x = 11,229.18