Finding the Fourth Proportional to 9,976.72, 13,768.49 and 5,500.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,976.72 : 13,768.49 = 5,500.46 : x
2. Step 2: Convert to fraction form
   9,976.72/13,768.49 = 5,500.46/x
3. Step 3: Cross multiply
   9,976.72x = 13,768.49 × 5,500.46
4. Step 4: Simplify right side
   9,976.72x = 75,733,076.68
5. Step 5: Solve for x
   x = 75,733,076.68/9,976.72
6. Step 6: Final answer
   x = 7,590.98