Finding the Fourth Proportional to 8,451.76, 12,680.88 and 5,955.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,451.76 : 12,680.88 = 5,955.34 : x
2. Step 2: Convert to fraction form
   8,451.76/12,680.88 = 5,955.34/x
3. Step 3: Cross multiply
   8,451.76x = 12,680.88 × 5,955.34
4. Step 4: Simplify right side
   8,451.76x = 75,518,951.90
5. Step 5: Solve for x
   x = 75,518,951.90/8,451.76
6. Step 6: Final answer
   x = 8,935.29