Finding the Fourth Proportional to 13,513.86, 18,649.08 and 7,545.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,513.86 : 18,649.08 = 7,545.18 : x
2. Step 2: Convert to fraction form
   13,513.86/18,649.08 = 7,545.18/x
3. Step 3: Cross multiply
   13,513.86x = 18,649.08 × 7,545.18
4. Step 4: Simplify right side
   13,513.86x = 140,710,665.43
5. Step 5: Solve for x
   x = 140,710,665.43/13,513.86
6. Step 6: Final answer
   x = 10,412.32