Finding the Fourth Proportional to 11,033.72, 15,266.48 and 9,620.37

Step by Step Solution

1. Step 1: Write the proportion equation
   11,033.72 : 15,266.48 = 9,620.37 : x
2. Step 2: Convert to fraction form
   11,033.72/15,266.48 = 9,620.37/x
3. Step 3: Cross multiply
   11,033.72x = 15,266.48 × 9,620.37
4. Step 4: Simplify right side
   11,033.72x = 146,869,138.10
5. Step 5: Solve for x
   x = 146,869,138.10/11,033.72
6. Step 6: Final answer
   x = 13,310.94