Finding the Fourth Proportional to 6,112.37, 8,434 and 3,987.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,112.37 : 8,434 = 3,987.34 : x
2. Step 2: Convert to fraction form
   6,112.37/8,434 = 3,987.34/x
3. Step 3: Cross multiply
   6,112.37x = 8,434 × 3,987.34
4. Step 4: Simplify right side
   6,112.37x = 33,629,225.56
5. Step 5: Solve for x
   x = 33,629,225.56/6,112.37
6. Step 6: Final answer
   x = 5,501.83