Finding the Fourth Proportional to 8,781.03, 12,118.54 and 5,005.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,781.03 : 12,118.54 = 5,005.38 : x
2. Step 2: Convert to fraction form
   8,781.03/12,118.54 = 5,005.38/x
3. Step 3: Cross multiply
   8,781.03x = 12,118.54 × 5,005.38
4. Step 4: Simplify right side
   8,781.03x = 60,657,940.62
5. Step 5: Solve for x
   x = 60,657,940.62/8,781.03
6. Step 6: Final answer
   x = 6,907.84