Finding the Fourth Proportional to 13,550.72, 18,706.24 and 9,575.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,550.72 : 18,706.24 = 9,575.04 : x
2. Step 2: Convert to fraction form
   13,550.72/18,706.24 = 9,575.04/x
3. Step 3: Cross multiply
   13,550.72x = 18,706.24 × 9,575.04
4. Step 4: Simplify right side
   13,550.72x = 179,112,996.25
5. Step 5: Solve for x
   x = 179,112,996.25/13,550.72
6. Step 6: Final answer
   x = 13,217.97