Finding the Fourth Proportional to 9,019.20, 12,443.16 and 5,662.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.20 : 12,443.16 = 5,662.16 : x
2. Step 2: Convert to fraction form
   9,019.20/12,443.16 = 5,662.16/x
3. Step 3: Cross multiply
   9,019.20x = 12,443.16 × 5,662.16
4. Step 4: Simplify right side
   9,019.20x = 70,455,162.83
5. Step 5: Solve for x
   x = 70,455,162.83/9,019.20
6. Step 6: Final answer
   x = 7,811.69