Finding the Fourth Proportional to 12,019.55, 18,035.78 and 5,004.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,019.55 : 18,035.78 = 5,004.41 : x
2. Step 2: Convert to fraction form
   12,019.55/18,035.78 = 5,004.41/x
3. Step 3: Cross multiply
   12,019.55x = 18,035.78 × 5,004.41
4. Step 4: Simplify right side
   12,019.55x = 90,258,322.59
5. Step 5: Solve for x
   x = 90,258,322.59/12,019.55
6. Step 6: Final answer
   x = 7,509.30