Finding the Fourth Proportional to 13,496.89, 18,626.07 and 7,529.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,496.89 : 18,626.07 = 7,529.72 : x
2. Step 2: Convert to fraction form
   13,496.89/18,626.07 = 7,529.72/x
3. Step 3: Cross multiply
   13,496.89x = 18,626.07 × 7,529.72
4. Step 4: Simplify right side
   13,496.89x = 140,249,054.15
5. Step 5: Solve for x
   x = 140,249,054.15/13,496.89
6. Step 6: Final answer
   x = 10,391.21