Finding the Fourth Proportional to 9,131.77, 13,697.34 and 3,865.33

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.77 : 13,697.34 = 3,865.33 : x
2. Step 2: Convert to fraction form
   9,131.77/13,697.34 = 3,865.33/x
3. Step 3: Cross multiply
   9,131.77x = 13,697.34 × 3,865.33
4. Step 4: Simplify right side
   9,131.77x = 52,944,739.22
5. Step 5: Solve for x
   x = 52,944,739.22/9,131.77
6. Step 6: Final answer
   x = 5,797.86