Finding the Fourth Proportional to 19,856.77, 27,402.33 and 10,904.27

Step by Step Solution

1. Step 1: Write the proportion equation
   19,856.77 : 27,402.33 = 10,904.27 : x
2. Step 2: Convert to fraction form
   19,856.77/27,402.33 = 10,904.27/x
3. Step 3: Cross multiply
   19,856.77x = 27,402.33 × 10,904.27
4. Step 4: Simplify right side
   19,856.77x = 298,802,404.95
5. Step 5: Solve for x
   x = 298,802,404.95/19,856.77
6. Step 6: Final answer
   x = 15,047.89