Finding the Fourth Proportional to 19,926.61, 27,498.89 and 10,974.15

Step by Step Solution

1. Step 1: Write the proportion equation
   19,926.61 : 27,498.89 = 10,974.15 : x
2. Step 2: Convert to fraction form
   19,926.61/27,498.89 = 10,974.15/x
3. Step 3: Cross multiply
   19,926.61x = 27,498.89 × 10,974.15
4. Step 4: Simplify right side
   19,926.61x = 301,776,971.13
5. Step 5: Solve for x
   x = 301,776,971.13/19,926.61
6. Step 6: Final answer
   x = 15,144.42