Finding the Fourth Proportional to 9,019.56, 12,445.80 and 5,040.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.56 : 12,445.80 = 5,040.18 : x
2. Step 2: Convert to fraction form
   9,019.56/12,445.80 = 5,040.18/x
3. Step 3: Cross multiply
   9,019.56x = 12,445.80 × 5,040.18
4. Step 4: Simplify right side
   9,019.56x = 62,729,072.24
5. Step 5: Solve for x
   x = 62,729,072.24/9,019.56
6. Step 6: Final answer
   x = 6,954.78