Finding the Fourth Proportional to 5,380.62, 8,083.23 and 5,159.46

Step by Step Solution

1. Step 1: Write the proportion equation
   5,380.62 : 8,083.23 = 5,159.46 : x
2. Step 2: Convert to fraction form
   5,380.62/8,083.23 = 5,159.46/x
3. Step 3: Cross multiply
   5,380.62x = 8,083.23 × 5,159.46
4. Step 4: Simplify right side
   5,380.62x = 41,705,101.86
5. Step 5: Solve for x
   x = 41,705,101.86/5,380.62
6. Step 6: Final answer
   x = 7,750.98