Finding the Fourth Proportional to 10,665.30, 16,000.44 and 3,645.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,665.30 : 16,000.44 = 3,645.37 : x
2. Step 2: Convert to fraction form
   10,665.30/16,000.44 = 3,645.37/x
3. Step 3: Cross multiply
   10,665.30x = 16,000.44 × 3,645.37
4. Step 4: Simplify right side
   10,665.30x = 58,327,523.96
5. Step 5: Solve for x
   x = 58,327,523.96/10,665.30
6. Step 6: Final answer
   x = 5,468.91