Finding the Fourth Proportional to 12,845.34, 19,269.23 and 3,485.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,845.34 : 19,269.23 = 3,485.89 : x
2. Step 2: Convert to fraction form
   12,845.34/19,269.23 = 3,485.89/x
3. Step 3: Cross multiply
   12,845.34x = 19,269.23 × 3,485.89
4. Step 4: Simplify right side
   12,845.34x = 67,170,416.16
5. Step 5: Solve for x
   x = 67,170,416.16/12,845.34
6. Step 6: Final answer
   x = 5,229.17