Finding the Fourth Proportional to 9,910.78, 14,866.49 and 3,672.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,910.78 : 14,866.49 = 3,672.36 : x
2. Step 2: Convert to fraction form
   9,910.78/14,866.49 = 3,672.36/x
3. Step 3: Cross multiply
   9,910.78x = 14,866.49 × 3,672.36
4. Step 4: Simplify right side
   9,910.78x = 54,595,103.22
5. Step 5: Solve for x
   x = 54,595,103.22/9,910.78
6. Step 6: Final answer
   x = 5,508.66