Finding the Fourth Proportional to 12,155.67, 18,234.32 and 3,835.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,155.67 : 18,234.32 = 3,835.89 : x
2. Step 2: Convert to fraction form
   12,155.67/18,234.32 = 3,835.89/x
3. Step 3: Cross multiply
   12,155.67x = 18,234.32 × 3,835.89
4. Step 4: Simplify right side
   12,155.67x = 69,944,826.57
5. Step 5: Solve for x
   x = 69,944,826.57/12,155.67
6. Step 6: Final answer
   x = 5,754.09