Finding the Fourth Proportional to 8,315.23, 12,472.82 and 3,383.77

Step by Step Solution

1. Step 1: Write the proportion equation
   8,315.23 : 12,472.82 = 3,383.77 : x
2. Step 2: Convert to fraction form
   8,315.23/12,472.82 = 3,383.77/x
3. Step 3: Cross multiply
   8,315.23x = 12,472.82 × 3,383.77
4. Step 4: Simplify right side
   8,315.23x = 42,205,091.77
5. Step 5: Solve for x
   x = 42,205,091.77/8,315.23
6. Step 6: Final answer
   x = 5,075.64