Finding the Fourth Proportional to 13,806.72, 19,057.62 and 8,141.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,806.72 : 19,057.62 = 8,141.04 : x
2. Step 2: Convert to fraction form
   13,806.72/19,057.62 = 8,141.04/x
3. Step 3: Cross multiply
   13,806.72x = 19,057.62 × 8,141.04
4. Step 4: Simplify right side
   13,806.72x = 155,148,846.72
5. Step 5: Solve for x
   x = 155,148,846.72/13,806.72
6. Step 6: Final answer
   x = 11,237.20