Finding the Fourth Proportional to 8,315.85, 12,473.76 and 3,384.39

Step by Step Solution

1. Step 1: Write the proportion equation
   8,315.85 : 12,473.76 = 3,384.39 : x
2. Step 2: Convert to fraction form
   8,315.85/12,473.76 = 3,384.39/x
3. Step 3: Cross multiply
   8,315.85x = 12,473.76 × 3,384.39
4. Step 4: Simplify right side
   8,315.85x = 42,216,068.61
5. Step 5: Solve for x
   x = 42,216,068.61/8,315.85
6. Step 6: Final answer
   x = 5,076.58