Finding the Fourth Proportional to 8,384.29, 12,576.34 and 3,386.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,384.29 : 12,576.34 = 3,386.58 : x
2. Step 2: Convert to fraction form
   8,384.29/12,576.34 = 3,386.58/x
3. Step 3: Cross multiply
   8,384.29x = 12,576.34 × 3,386.58
4. Step 4: Simplify right side
   8,384.29x = 42,590,738.59
5. Step 5: Solve for x
   x = 42,590,738.59/8,384.29
6. Step 6: Final answer
   x = 5,079.83