Finding the Fourth Proportional to 13,502.45, 18,634.32 and 7,535.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,502.45 : 18,634.32 = 7,535.30 : x
2. Step 2: Convert to fraction form
   13,502.45/18,634.32 = 7,535.30/x
3. Step 3: Cross multiply
   13,502.45x = 18,634.32 × 7,535.30
4. Step 4: Simplify right side
   13,502.45x = 140,415,098.32
5. Step 5: Solve for x
   x = 140,415,098.32/13,502.45
6. Step 6: Final answer
   x = 10,399.23