Finding the Fourth Proportional to 9,131.18, 13,697.56 and 3,207.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.18 : 13,697.56 = 3,207.56 : x
2. Step 2: Convert to fraction form
   9,131.18/13,697.56 = 3,207.56/x
3. Step 3: Cross multiply
   9,131.18x = 13,697.56 × 3,207.56
4. Step 4: Simplify right side
   9,131.18x = 43,935,745.55
5. Step 5: Solve for x
   x = 43,935,745.55/9,131.18
6. Step 6: Final answer
   x = 4,811.62