Finding the Fourth Proportional to 19,926.65, 27,498.71 and 10,974.15

Step by Step Solution

1. Step 1: Write the proportion equation
   19,926.65 : 27,498.71 = 10,974.15 : x
2. Step 2: Convert to fraction form
   19,926.65/27,498.71 = 10,974.15/x
3. Step 3: Cross multiply
   19,926.65x = 27,498.71 × 10,974.15
4. Step 4: Simplify right side
   19,926.65x = 301,774,913.48
5. Step 5: Solve for x
   x = 301,774,913.48/19,926.65
6. Step 6: Final answer
   x = 15,144.29