Finding the Fourth Proportional to 9,976.45, 13,767.33 and 5,500.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,976.45 : 13,767.33 = 5,500.63 : x
2. Step 2: Convert to fraction form
   9,976.45/13,767.33 = 5,500.63/x
3. Step 3: Cross multiply
   9,976.45x = 13,767.33 × 5,500.63
4. Step 4: Simplify right side
   9,976.45x = 75,728,988.42
5. Step 5: Solve for x
   x = 75,728,988.42/9,976.45
6. Step 6: Final answer
   x = 7,590.78