Finding the Fourth Proportional to 13,496.69, 18,625.22 and 7,528.21

Step by Step Solution

1. Step 1: Write the proportion equation
   13,496.69 : 18,625.22 = 7,528.21 : x
2. Step 2: Convert to fraction form
   13,496.69/18,625.22 = 7,528.21/x
3. Step 3: Cross multiply
   13,496.69x = 18,625.22 × 7,528.21
4. Step 4: Simplify right side
   13,496.69x = 140,214,511.48
5. Step 5: Solve for x
   x = 140,214,511.48/13,496.69
6. Step 6: Final answer
   x = 10,388.81