Finding the Fourth Proportional to 8,242.32, 12,355.23 and 4,085.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,242.32 : 12,355.23 = 4,085.37 : x
2. Step 2: Convert to fraction form
   8,242.32/12,355.23 = 4,085.37/x
3. Step 3: Cross multiply
   8,242.32x = 12,355.23 × 4,085.37
4. Step 4: Simplify right side
   8,242.32x = 50,475,701.31
5. Step 5: Solve for x
   x = 50,475,701.31/8,242.32
6. Step 6: Final answer
   x = 6,123.96