Finding the Fourth Proportional to 13,484.46, 18,606.32 and 7,514.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,484.46 : 18,606.32 = 7,514.78 : x
2. Step 2: Convert to fraction form
   13,484.46/18,606.32 = 7,514.78/x
3. Step 3: Cross multiply
   13,484.46x = 18,606.32 × 7,514.78
4. Step 4: Simplify right side
   13,484.46x = 139,822,401.41
5. Step 5: Solve for x
   x = 139,822,401.41/13,484.46
6. Step 6: Final answer
   x = 10,369.15