Finding the Fourth Proportional to 13,863.76, 19,133.94 and 8,826.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,863.76 : 19,133.94 = 8,826.37 : x
2. Step 2: Convert to fraction form
   13,863.76/19,133.94 = 8,826.37/x
3. Step 3: Cross multiply
   13,863.76x = 19,133.94 × 8,826.37
4. Step 4: Simplify right side
   13,863.76x = 168,883,234.00
5. Step 5: Solve for x
   x = 168,883,234.00/13,863.76
6. Step 6: Final answer
   x = 12,181.63