Finding the Fourth Proportional to 13,496.38, 18,624.96 and 7,528.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,496.38 : 18,624.96 = 7,528.06 : x
2. Step 2: Convert to fraction form
   13,496.38/18,624.96 = 7,528.06/x
3. Step 3: Cross multiply
   13,496.38x = 18,624.96 × 7,528.06
4. Step 4: Simplify right side
   13,496.38x = 140,209,816.38
5. Step 5: Solve for x
   x = 140,209,816.38/13,496.38
6. Step 6: Final answer
   x = 10,388.70