Finding the Fourth Proportional to 13,408.38, 18,503.56 and 7,441.01

Step by Step Solution

1. Step 1: Write the proportion equation
   13,408.38 : 18,503.56 = 7,441.01 : x
2. Step 2: Convert to fraction form
   13,408.38/18,503.56 = 7,441.01/x
3. Step 3: Cross multiply
   13,408.38x = 18,503.56 × 7,441.01
4. Step 4: Simplify right side
   13,408.38x = 137,685,063.88
5. Step 5: Solve for x
   x = 137,685,063.88/13,408.38
6. Step 6: Final answer
   x = 10,268.59