Finding the Fourth Proportional to 19,885.48, 27,442.15 and 10,933.05

Step by Step Solution

1. Step 1: Write the proportion equation
   19,885.48 : 27,442.15 = 10,933.05 : x
2. Step 2: Convert to fraction form
   19,885.48/27,442.15 = 10,933.05/x
3. Step 3: Cross multiply
   19,885.48x = 27,442.15 × 10,933.05
4. Step 4: Simplify right side
   19,885.48x = 300,026,260.85
5. Step 5: Solve for x
   x = 300,026,260.85/19,885.48
6. Step 6: Final answer
   x = 15,087.71