Finding the Fourth Proportional to 12,019.26, 18,024.02 and 4,994.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,019.26 : 18,024.02 = 4,994.50 : x
2. Step 2: Convert to fraction form
   12,019.26/18,024.02 = 4,994.50/x
3. Step 3: Cross multiply
   12,019.26x = 18,024.02 × 4,994.50
4. Step 4: Simplify right side
   12,019.26x = 90,020,967.89
5. Step 5: Solve for x
   x = 90,020,967.89/12,019.26
6. Step 6: Final answer
   x = 7,489.73