Finding the Fourth Proportional to 19,926.81, 27,498.69 and 10,974.15

Step by Step Solution

1. Step 1: Write the proportion equation
   19,926.81 : 27,498.69 = 10,974.15 : x
2. Step 2: Convert to fraction form
   19,926.81/27,498.69 = 10,974.15/x
3. Step 3: Cross multiply
   19,926.81x = 27,498.69 × 10,974.15
4. Step 4: Simplify right side
   19,926.81x = 301,774,748.86
5. Step 5: Solve for x
   x = 301,774,748.86/19,926.81
6. Step 6: Final answer
   x = 15,144.16