Finding the Fourth Proportional to 8,304.72, 12,454.56 and 3,917.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,304.72 : 12,454.56 = 3,917.76 : x
2. Step 2: Convert to fraction form
   8,304.72/12,454.56 = 3,917.76/x
3. Step 3: Cross multiply
   8,304.72x = 12,454.56 × 3,917.76
4. Step 4: Simplify right side
   8,304.72x = 48,793,976.99
5. Step 5: Solve for x
   x = 48,793,976.99/8,304.72
6. Step 6: Final answer
   x = 5,875.45