Finding the Fourth Proportional to 8,783.24, 13,127.40 and 8,082.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,783.24 : 13,127.40 = 8,082.72 : x
2. Step 2: Convert to fraction form
   8,783.24/13,127.40 = 8,082.72/x
3. Step 3: Cross multiply
   8,783.24x = 13,127.40 × 8,082.72
4. Step 4: Simplify right side
   8,783.24x = 106,105,098.53
5. Step 5: Solve for x
   x = 106,105,098.53/8,783.24
6. Step 6: Final answer
   x = 12,080.41