Finding the Fourth Proportional to 8,315.81, 12,472.29 and 2,768.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,315.81 : 12,472.29 = 2,768.52 : x
2. Step 2: Convert to fraction form
   8,315.81/12,472.29 = 2,768.52/x
3. Step 3: Cross multiply
   8,315.81x = 12,472.29 × 2,768.52
4. Step 4: Simplify right side
   8,315.81x = 34,529,784.31
5. Step 5: Solve for x
   x = 34,529,784.31/8,315.81
6. Step 6: Final answer
   x = 4,152.31