Finding the Fourth Proportional to 13,496.99, 18,625.83 and 7,528.65

Step by Step Solution

1. Step 1: Write the proportion equation
   13,496.99 : 18,625.83 = 7,528.65 : x
2. Step 2: Convert to fraction form
   13,496.99/18,625.83 = 7,528.65/x
3. Step 3: Cross multiply
   13,496.99x = 18,625.83 × 7,528.65
4. Step 4: Simplify right side
   13,496.99x = 140,227,401.59
5. Step 5: Solve for x
   x = 140,227,401.59/13,496.99
6. Step 6: Final answer
   x = 10,389.54