Finding the Fourth Proportional to 12,976.16, 17,913.04 and 8,266.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,976.16 : 17,913.04 = 8,266.82 : x
2. Step 2: Convert to fraction form
   12,976.16/17,913.04 = 8,266.82/x
3. Step 3: Cross multiply
   12,976.16x = 17,913.04 × 8,266.82
4. Step 4: Simplify right side
   12,976.16x = 148,083,877.33
5. Step 5: Solve for x
   x = 148,083,877.33/12,976.16
6. Step 6: Final answer
   x = 11,412.00