Finding the Fourth Proportional to 9,131.39, 13,697.69 and 3,207.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.39 : 13,697.69 = 3,207.56 : x
2. Step 2: Convert to fraction form
   9,131.39/13,697.69 = 3,207.56/x
3. Step 3: Cross multiply
   9,131.39x = 13,697.69 × 3,207.56
4. Step 4: Simplify right side
   9,131.39x = 43,936,094.05
5. Step 5: Solve for x
   x = 43,936,094.05/9,131.39
6. Step 6: Final answer
   x = 4,811.55