Finding the Fourth Proportional to 5,404.41, 8,109.14 and 5,317.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.41 : 8,109.14 = 5,317.05 : x
2. Step 2: Convert to fraction form
   5,404.41/8,109.14 = 5,317.05/x
3. Step 3: Cross multiply
   5,404.41x = 8,109.14 × 5,317.05
4. Step 4: Simplify right side
   5,404.41x = 43,116,676.25
5. Step 5: Solve for x
   x = 43,116,676.25/5,404.41
6. Step 6: Final answer
   x = 7,978.05