Finding the Fourth Proportional to 9,019.79, 12,448.03 and 4,986.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.79 : 12,448.03 = 4,986.96 : x
2. Step 2: Convert to fraction form
   9,019.79/12,448.03 = 4,986.96/x
3. Step 3: Cross multiply
   9,019.79x = 12,448.03 × 4,986.96
4. Step 4: Simplify right side
   9,019.79x = 62,077,827.69
5. Step 5: Solve for x
   x = 62,077,827.69/9,019.79
6. Step 6: Final answer
   x = 6,882.41