Finding the Fourth Proportional to 13,676.48, 18,873.55 and 7,388.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,676.48 : 18,873.55 = 7,388.86 : x
2. Step 2: Convert to fraction form
   13,676.48/18,873.55 = 7,388.86/x
3. Step 3: Cross multiply
   13,676.48x = 18,873.55 × 7,388.86
4. Step 4: Simplify right side
   13,676.48x = 139,453,995.31
5. Step 5: Solve for x
   x = 139,453,995.31/13,676.48
6. Step 6: Final answer
   x = 10,196.63