Finding the Fourth Proportional to 6,113.21, 8,436.59 and 3,424.37

Step by Step Solution

1. Step 1: Write the proportion equation
   6,113.21 : 8,436.59 = 3,424.37 : x
2. Step 2: Convert to fraction form
   6,113.21/8,436.59 = 3,424.37/x
3. Step 3: Cross multiply
   6,113.21x = 8,436.59 × 3,424.37
4. Step 4: Simplify right side
   6,113.21x = 28,889,946.39
5. Step 5: Solve for x
   x = 28,889,946.39/6,113.21
6. Step 6: Final answer
   x = 4,725.83