Finding the Fourth Proportional to 11,272.29, 16,889.82 and 3,872.67

Step by Step Solution

1. Step 1: Write the proportion equation
   11,272.29 : 16,889.82 = 3,872.67 : x
2. Step 2: Convert to fraction form
   11,272.29/16,889.82 = 3,872.67/x
3. Step 3: Cross multiply
   11,272.29x = 16,889.82 × 3,872.67
4. Step 4: Simplify right side
   11,272.29x = 65,408,699.22
5. Step 5: Solve for x
   x = 65,408,699.22/11,272.29
6. Step 6: Final answer
   x = 5,802.61