Finding the Fourth Proportional to 19,724, 27,219.12 and 10,892

Step by Step Solution

1. Step 1: Write the proportion equation
   19,724 : 27,219.12 = 10,892 : x
2. Step 2: Convert to fraction form
   19,724/27,219.12 = 10,892/x
3. Step 3: Cross multiply
   19,724x = 27,219.12 × 10,892
4. Step 4: Simplify right side
   19,724x = 296,470,655.04
5. Step 5: Solve for x
   x = 296,470,655.04/19,724
6. Step 6: Final answer
   x = 15,030.96