Finding the Fourth Proportional to 10,745.39, 16,118.85 and 4,499.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,745.39 : 16,118.85 = 4,499.12 : x
2. Step 2: Convert to fraction form
   10,745.39/16,118.85 = 4,499.12/x
3. Step 3: Cross multiply
   10,745.39x = 16,118.85 × 4,499.12
4. Step 4: Simplify right side
   10,745.39x = 72,520,559.82
5. Step 5: Solve for x
   x = 72,520,559.82/10,745.39
6. Step 6: Final answer
   x = 6,749.00