Finding the Fourth Proportional to 9,976.68, 13,767.92 and 5,500.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,976.68 : 13,767.92 = 5,500.59 : x
2. Step 2: Convert to fraction form
   9,976.68/13,767.92 = 5,500.59/x
3. Step 3: Cross multiply
   9,976.68x = 13,767.92 × 5,500.59
4. Step 4: Simplify right side
   9,976.68x = 75,731,683.07
5. Step 5: Solve for x
   x = 75,731,683.07/9,976.68
6. Step 6: Final answer
   x = 7,590.87