Finding the Fourth Proportional to 13,513.56, 18,648.52 and 7,545.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,513.56 : 18,648.52 = 7,545.32 : x
2. Step 2: Convert to fraction form
   13,513.56/18,648.52 = 7,545.32/x
3. Step 3: Cross multiply
   13,513.56x = 18,648.52 × 7,545.32
4. Step 4: Simplify right side
   13,513.56x = 140,709,050.93
5. Step 5: Solve for x
   x = 140,709,050.93/13,513.56
6. Step 6: Final answer
   x = 10,412.43