Finding the Fourth Proportional to 6,645.83, 9,162.72 and 5,446.47

Step by Step Solution

1. Step 1: Write the proportion equation
   6,645.83 : 9,162.72 = 5,446.47 : x
2. Step 2: Convert to fraction form
   6,645.83/9,162.72 = 5,446.47/x
3. Step 3: Cross multiply
   6,645.83x = 9,162.72 × 5,446.47
4. Step 4: Simplify right side
   6,645.83x = 49,904,513.96
5. Step 5: Solve for x
   x = 49,904,513.96/6,645.83
6. Step 6: Final answer
   x = 7,509.15