Finding the Fourth Proportional to 19,942.72, 27,501.76 and 13,124.54

Step by Step Solution

1. Step 1: Write the proportion equation
   19,942.72 : 27,501.76 = 13,124.54 : x
2. Step 2: Convert to fraction form
   19,942.72/27,501.76 = 13,124.54/x
3. Step 3: Cross multiply
   19,942.72x = 27,501.76 × 13,124.54
4. Step 4: Simplify right side
   19,942.72x = 360,947,985.13
5. Step 5: Solve for x
   x = 360,947,985.13/19,942.72
6. Step 6: Final answer
   x = 18,099.24