Finding the Fourth Proportional to 19,827.78, 27,362.72 and 10,874.76

Step by Step Solution

1. Step 1: Write the proportion equation
   19,827.78 : 27,362.72 = 10,874.76 : x
2. Step 2: Convert to fraction form
   19,827.78/27,362.72 = 10,874.76/x
3. Step 3: Cross multiply
   19,827.78x = 27,362.72 × 10,874.76
4. Step 4: Simplify right side
   19,827.78x = 297,563,012.95
5. Step 5: Solve for x
   x = 297,563,012.95/19,827.78
6. Step 6: Final answer
   x = 15,007.38