Finding the Fourth Proportional to 11,424.72, 17,137.32 and 3,635.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,424.72 : 17,137.32 = 3,635.76 : x
2. Step 2: Convert to fraction form
   11,424.72/17,137.32 = 3,635.76/x
3. Step 3: Cross multiply
   11,424.72x = 17,137.32 × 3,635.76
4. Step 4: Simplify right side
   11,424.72x = 62,307,182.56
5. Step 5: Solve for x
   x = 62,307,182.56/11,424.72
6. Step 6: Final answer
   x = 5,453.72