Finding the Fourth Proportional to 12,019.76, 18,024.77 and 4,995

Step by Step Solution

1. Step 1: Write the proportion equation
   12,019.76 : 18,024.77 = 4,995 : x
2. Step 2: Convert to fraction form
   12,019.76/18,024.77 = 4,995/x
3. Step 3: Cross multiply
   12,019.76x = 18,024.77 × 4,995
4. Step 4: Simplify right side
   12,019.76x = 90,033,726.15
5. Step 5: Solve for x
   x = 90,033,726.15/12,019.76
6. Step 6: Final answer
   x = 7,490.48