Finding the Fourth Proportional to 5,131.56, 7,697.45 and 2,357.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,131.56 : 7,697.45 = 2,357.48 : x
2. Step 2: Convert to fraction form
   5,131.56/7,697.45 = 2,357.48/x
3. Step 3: Cross multiply
   5,131.56x = 7,697.45 × 2,357.48
4. Step 4: Simplify right side
   5,131.56x = 18,146,609.56
5. Step 5: Solve for x
   x = 18,146,609.56/5,131.56
6. Step 6: Final answer
   x = 3,536.27