Finding the Fourth Proportional to 13,155.37, 19,721.61 and 5,754.19

Step by Step Solution

1. Step 1: Write the proportion equation
   13,155.37 : 19,721.61 = 5,754.19 : x
2. Step 2: Convert to fraction form
   13,155.37/19,721.61 = 5,754.19/x
3. Step 3: Cross multiply
   13,155.37x = 19,721.61 × 5,754.19
4. Step 4: Simplify right side
   13,155.37x = 113,481,891.05
5. Step 5: Solve for x
   x = 113,481,891.05/13,155.37
6. Step 6: Final answer
   x = 8,626.28