Finding the Fourth Proportional to 8,473.92, 12,708.72 and 4,776

Step by Step Solution

1. Step 1: Write the proportion equation
   8,473.92 : 12,708.72 = 4,776 : x
2. Step 2: Convert to fraction form
   8,473.92/12,708.72 = 4,776/x
3. Step 3: Cross multiply
   8,473.92x = 12,708.72 × 4,776
4. Step 4: Simplify right side
   8,473.92x = 60,696,846.72
5. Step 5: Solve for x
   x = 60,696,846.72/8,473.92
6. Step 6: Final answer
   x = 7,162.78