Finding the Fourth Proportional to 8,472.56, 12,696.72 and 4,767.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,472.56 : 12,696.72 = 4,767.02 : x
2. Step 2: Convert to fraction form
   8,472.56/12,696.72 = 4,767.02/x
3. Step 3: Cross multiply
   8,472.56x = 12,696.72 × 4,767.02
4. Step 4: Simplify right side
   8,472.56x = 60,525,454.69
5. Step 5: Solve for x
   x = 60,525,454.69/8,472.56
6. Step 6: Final answer
   x = 7,143.71