Finding the Fourth Proportional to 12,325.59, 18,485.69 and 3,558.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,325.59 : 18,485.69 = 3,558.60 : x
2. Step 2: Convert to fraction form
   12,325.59/18,485.69 = 3,558.60/x
3. Step 3: Cross multiply
   12,325.59x = 18,485.69 × 3,558.60
4. Step 4: Simplify right side
   12,325.59x = 65,783,158.64
5. Step 5: Solve for x
   x = 65,783,158.64/12,325.59
6. Step 6: Final answer
   x = 5,337.12