Finding the Fourth Proportional to 19,581.72, 27,036.83 and 12,038.18

Step by Step Solution

1. Step 1: Write the proportion equation
   19,581.72 : 27,036.83 = 12,038.18 : x
2. Step 2: Convert to fraction form
   19,581.72/27,036.83 = 12,038.18/x
3. Step 3: Cross multiply
   19,581.72x = 27,036.83 × 12,038.18
4. Step 4: Simplify right side
   19,581.72x = 325,474,030.79
5. Step 5: Solve for x
   x = 325,474,030.79/19,581.72
6. Step 6: Final answer
   x = 16,621.32