Finding the Fourth Proportional to 10,856.56, 14,968.92 and 9,175

Step by Step Solution

1. Step 1: Write the proportion equation
   10,856.56 : 14,968.92 = 9,175 : x
2. Step 2: Convert to fraction form
   10,856.56/14,968.92 = 9,175/x
3. Step 3: Cross multiply
   10,856.56x = 14,968.92 × 9,175
4. Step 4: Simplify right side
   10,856.56x = 137,339,841
5. Step 5: Solve for x
   x = 137,339,841/10,856.56
6. Step 6: Final answer
   x = 12,650.40