Finding the Fourth Proportional to 12,697.56, 17,510.58 and 9,713.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,697.56 : 17,510.58 = 9,713.52 : x
2. Step 2: Convert to fraction form
   12,697.56/17,510.58 = 9,713.52/x
3. Step 3: Cross multiply
   12,697.56x = 17,510.58 × 9,713.52
4. Step 4: Simplify right side
   12,697.56x = 170,089,369.04
5. Step 5: Solve for x
   x = 170,089,369.04/12,697.56
6. Step 6: Final answer
   x = 13,395.44