Finding the Fourth Proportional to 9,976.77, 13,768.04 and 5,500.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,976.77 : 13,768.04 = 5,500.68 : x
2. Step 2: Convert to fraction form
   9,976.77/13,768.04 = 5,500.68/x
3. Step 3: Cross multiply
   9,976.77x = 13,768.04 × 5,500.68
4. Step 4: Simplify right side
   9,976.77x = 75,733,554.76
5. Step 5: Solve for x
   x = 75,733,554.76/9,976.77
6. Step 6: Final answer
   x = 7,590.99