Finding the Fourth Proportional to 5,493.42, 7,581.56 and 5,321.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,493.42 : 7,581.56 = 5,321.16 : x
2. Step 2: Convert to fraction form
   5,493.42/7,581.56 = 5,321.16/x
3. Step 3: Cross multiply
   5,493.42x = 7,581.56 × 5,321.16
4. Step 4: Simplify right side
   5,493.42x = 40,342,667.20
5. Step 5: Solve for x
   x = 40,342,667.20/5,493.42
6. Step 6: Final answer
   x = 7,343.82