Finding the Fourth Proportional to 8,781.62, 12,118.21 and 5,004.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,781.62 : 12,118.21 = 5,004.89 : x
2. Step 2: Convert to fraction form
   8,781.62/12,118.21 = 5,004.89/x
3. Step 3: Cross multiply
   8,781.62x = 12,118.21 × 5,004.89
4. Step 4: Simplify right side
   8,781.62x = 60,650,280.39
5. Step 5: Solve for x
   x = 60,650,280.39/8,781.62
6. Step 6: Final answer
   x = 6,906.51