Finding the Fourth Proportional to 12,856.50, 17,741.97 and 7,268.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,856.50 : 17,741.97 = 7,268.58 : x
2. Step 2: Convert to fraction form
   12,856.50/17,741.97 = 7,268.58/x
3. Step 3: Cross multiply
   12,856.50x = 17,741.97 × 7,268.58
4. Step 4: Simplify right side
   12,856.50x = 128,958,928.30
5. Step 5: Solve for x
   x = 128,958,928.30/12,856.50
6. Step 6: Final answer
   x = 10,030.64