Finding the Fourth Proportional to 8,649.72, 12,976.74 and 4,956.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,649.72 : 12,976.74 = 4,956.12 : x
2. Step 2: Convert to fraction form
   8,649.72/12,976.74 = 4,956.12/x
3. Step 3: Cross multiply
   8,649.72x = 12,976.74 × 4,956.12
4. Step 4: Simplify right side
   8,649.72x = 64,314,280.65
5. Step 5: Solve for x
   x = 64,314,280.65/8,649.72
6. Step 6: Final answer
   x = 7,435.42