Finding the Fourth Proportional to 13,524.23, 18,661.59 and 7,555.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,524.23 : 18,661.59 = 7,555.16 : x
2. Step 2: Convert to fraction form
   13,524.23/18,661.59 = 7,555.16/x
3. Step 3: Cross multiply
   13,524.23x = 18,661.59 × 7,555.16
4. Step 4: Simplify right side
   13,524.23x = 140,991,298.30
5. Step 5: Solve for x
   x = 140,991,298.30/13,524.23
6. Step 6: Final answer
   x = 10,425.09