Finding the Fourth Proportional to 13,502.20, 18,633.98 and 7,535.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,502.20 : 18,633.98 = 7,535.03 : x
2. Step 2: Convert to fraction form
   13,502.20/18,633.98 = 7,535.03/x
3. Step 3: Cross multiply
   13,502.20x = 18,633.98 × 7,535.03
4. Step 4: Simplify right side
   13,502.20x = 140,407,598.32
5. Step 5: Solve for x
   x = 140,407,598.32/13,502.20
6. Step 6: Final answer
   x = 10,398.87