Finding the Fourth Proportional to 6,446.72, 8,891.54 and 5,552.03

Step by Step Solution

1. Step 1: Write the proportion equation
   6,446.72 : 8,891.54 = 5,552.03 : x
2. Step 2: Convert to fraction form
   6,446.72/8,891.54 = 5,552.03/x
3. Step 3: Cross multiply
   6,446.72x = 8,891.54 × 5,552.03
4. Step 4: Simplify right side
   6,446.72x = 49,366,062.10
5. Step 5: Solve for x
   x = 49,366,062.10/6,446.72
6. Step 6: Final answer
   x = 7,657.54