Finding the Fourth Proportional to 19,896.20, 29,849.34 and 5,856.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,896.20 : 29,849.34 = 5,856.72 : x
2. Step 2: Convert to fraction form
   19,896.20/29,849.34 = 5,856.72/x
3. Step 3: Cross multiply
   19,896.20x = 29,849.34 × 5,856.72
4. Step 4: Simplify right side
   19,896.20x = 174,819,226.56
5. Step 5: Solve for x
   x = 174,819,226.56/19,896.20
6. Step 6: Final answer
   x = 8,786.56