Finding the Fourth Proportional to 19,931.82, 27,506.24 and 10,979.24

Step by Step Solution

1. Step 1: Write the proportion equation
   19,931.82 : 27,506.24 = 10,979.24 : x
2. Step 2: Convert to fraction form
   19,931.82/27,506.24 = 10,979.24/x
3. Step 3: Cross multiply
   19,931.82x = 27,506.24 × 10,979.24
4. Step 4: Simplify right side
   19,931.82x = 301,997,418.03
5. Step 5: Solve for x
   x = 301,997,418.03/19,931.82
6. Step 6: Final answer
   x = 15,151.52