Finding the Fourth Proportional to 8,875.66, 12,249.86 and 5,340.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,875.66 : 12,249.86 = 5,340.82 : x
2. Step 2: Convert to fraction form
   8,875.66/12,249.86 = 5,340.82/x
3. Step 3: Cross multiply
   8,875.66x = 12,249.86 × 5,340.82
4. Step 4: Simplify right side
   8,875.66x = 65,424,297.29
5. Step 5: Solve for x
   x = 65,424,297.29/8,875.66
6. Step 6: Final answer
   x = 7,371.20