Finding the Fourth Proportional to 8,781.48, 12,118.40 and 5,004.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,781.48 : 12,118.40 = 5,004.81 : x
2. Step 2: Convert to fraction form
   8,781.48/12,118.40 = 5,004.81/x
3. Step 3: Cross multiply
   8,781.48x = 12,118.40 × 5,004.81
4. Step 4: Simplify right side
   8,781.48x = 60,650,264.48
5. Step 5: Solve for x
   x = 60,650,264.48/8,781.48
6. Step 6: Final answer
   x = 6,906.61