Finding the Fourth Proportional to 5,580.58, 7,693.50 and 5,408.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,580.58 : 7,693.50 = 5,408.05 : x
2. Step 2: Convert to fraction form
   5,580.58/7,693.50 = 5,408.05/x
3. Step 3: Cross multiply
   5,580.58x = 7,693.50 × 5,408.05
4. Step 4: Simplify right side
   5,580.58x = 41,606,832.68
5. Step 5: Solve for x
   x = 41,606,832.68/5,580.58
6. Step 6: Final answer
   x = 7,455.65