Finding the Fourth Proportional to 8,817.12, 12,168.29 and 5,040.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,817.12 : 12,168.29 = 5,040.43 : x
2. Step 2: Convert to fraction form
   8,817.12/12,168.29 = 5,040.43/x
3. Step 3: Cross multiply
   8,817.12x = 12,168.29 × 5,040.43
4. Step 4: Simplify right side
   8,817.12x = 61,333,413.96
5. Step 5: Solve for x
   x = 61,333,413.96/8,817.12
6. Step 6: Final answer
   x = 6,956.17