Finding the Fourth Proportional to 19,826.64, 27,355.32 and 12,269.34

Step by Step Solution

1. Step 1: Write the proportion equation
   19,826.64 : 27,355.32 = 12,269.34 : x
2. Step 2: Convert to fraction form
   19,826.64/27,355.32 = 12,269.34/x
3. Step 3: Cross multiply
   19,826.64x = 27,355.32 × 12,269.34
4. Step 4: Simplify right side
   19,826.64x = 335,631,721.89
5. Step 5: Solve for x
   x = 335,631,721.89/19,826.64
6. Step 6: Final answer
   x = 16,928.32