Finding the Fourth Proportional to 8,911.31, 12,297.57 and 4,932.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,911.31 : 12,297.57 = 4,932.18 : x
2. Step 2: Convert to fraction form
   8,911.31/12,297.57 = 4,932.18/x
3. Step 3: Cross multiply
   8,911.31x = 12,297.57 × 4,932.18
4. Step 4: Simplify right side
   8,911.31x = 60,653,828.80
5. Step 5: Solve for x
   x = 60,653,828.80/8,911.31
6. Step 6: Final answer
   x = 6,806.39