Finding the Fourth Proportional to 8,627.13, 12,923.69 and 8,019.63

Step by Step Solution

1. Step 1: Write the proportion equation
   8,627.13 : 12,923.69 = 8,019.63 : x
2. Step 2: Convert to fraction form
   8,627.13/12,923.69 = 8,019.63/x
3. Step 3: Cross multiply
   8,627.13x = 12,923.69 × 8,019.63
4. Step 4: Simplify right side
   8,627.13x = 103,643,171.94
5. Step 5: Solve for x
   x = 103,643,171.94/8,627.13
6. Step 6: Final answer
   x = 12,013.63