Finding the Fourth Proportional to 12,013.08, 18,019.56 and 3,247.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,013.08 : 18,019.56 = 3,247.96 : x
2. Step 2: Convert to fraction form
   12,013.08/18,019.56 = 3,247.96/x
3. Step 3: Cross multiply
   12,013.08x = 18,019.56 × 3,247.96
4. Step 4: Simplify right side
   12,013.08x = 58,526,810.10
5. Step 5: Solve for x
   x = 58,526,810.10/12,013.08
6. Step 6: Final answer
   x = 4,871.92