Finding the Fourth Proportional to 19,897.36, 27,458.16 and 10,945

Step by Step Solution

1. Step 1: Write the proportion equation
   19,897.36 : 27,458.16 = 10,945 : x
2. Step 2: Convert to fraction form
   19,897.36/27,458.16 = 10,945/x
3. Step 3: Cross multiply
   19,897.36x = 27,458.16 × 10,945
4. Step 4: Simplify right side
   19,897.36x = 300,529,561.20
5. Step 5: Solve for x
   x = 300,529,561.20/19,897.36
6. Step 6: Final answer
   x = 15,103.99