Finding the Fourth Proportional to 9,019.07, 12,449.80 and 8,073.19

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.07 : 12,449.80 = 8,073.19 : x
2. Step 2: Convert to fraction form
   9,019.07/12,449.80 = 8,073.19/x
3. Step 3: Cross multiply
   9,019.07x = 12,449.80 × 8,073.19
4. Step 4: Simplify right side
   9,019.07x = 100,509,601.71
5. Step 5: Solve for x
   x = 100,509,601.71/9,019.07
6. Step 6: Final answer
   x = 11,144.12