Finding the Fourth Proportional to 10,856.96, 14,983.80 and 6,662.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,856.96 : 14,983.80 = 6,662.72 : x
2. Step 2: Convert to fraction form
   10,856.96/14,983.80 = 6,662.72/x
3. Step 3: Cross multiply
   10,856.96x = 14,983.80 × 6,662.72
4. Step 4: Simplify right side
   10,856.96x = 99,832,863.94
5. Step 5: Solve for x
   x = 99,832,863.94/10,856.96
6. Step 6: Final answer
   x = 9,195.29