Finding the Fourth Proportional to 13,533.72, 18,676.39 and 7,484.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,533.72 : 18,676.39 = 7,484.37 : x
2. Step 2: Convert to fraction form
   13,533.72/18,676.39 = 7,484.37/x
3. Step 3: Cross multiply
   13,533.72x = 18,676.39 × 7,484.37
4. Step 4: Simplify right side
   13,533.72x = 139,781,013.02
5. Step 5: Solve for x
   x = 139,781,013.02/13,533.72
6. Step 6: Final answer
   x = 10,328.35