Finding the Fourth Proportional to 13,132.36, 19,676.56 and 5,725.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,132.36 : 19,676.56 = 5,725.72 : x
2. Step 2: Convert to fraction form
   13,132.36/19,676.56 = 5,725.72/x
3. Step 3: Cross multiply
   13,132.36x = 19,676.56 × 5,725.72
4. Step 4: Simplify right side
   13,132.36x = 112,662,473.12
5. Step 5: Solve for x
   x = 112,662,473.12/13,132.36
6. Step 6: Final answer
   x = 8,579.00