Finding the Fourth Proportional to 8,722.92, 13,086.72 and 3,176.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,722.92 : 13,086.72 = 3,176.76 : x
2. Step 2: Convert to fraction form
   8,722.92/13,086.72 = 3,176.76/x
3. Step 3: Cross multiply
   8,722.92x = 13,086.72 × 3,176.76
4. Step 4: Simplify right side
   8,722.92x = 41,573,368.63
5. Step 5: Solve for x
   x = 41,573,368.63/8,722.92
6. Step 6: Final answer
   x = 4,765.99