Finding the Fourth Proportional to 8,910.82, 12,297.84 and 5,134.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,910.82 : 12,297.84 = 5,134.12 : x
2. Step 2: Convert to fraction form
   8,910.82/12,297.84 = 5,134.12/x
3. Step 3: Cross multiply
   8,910.82x = 12,297.84 × 5,134.12
4. Step 4: Simplify right side
   8,910.82x = 63,138,617.05
5. Step 5: Solve for x
   x = 63,138,617.05/8,910.82
6. Step 6: Final answer
   x = 7,085.62