Finding the Fourth Proportional to 9,718.56, 14,578.56 and 2,793.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,718.56 : 14,578.56 = 2,793.12 : x
2. Step 2: Convert to fraction form
   9,718.56/14,578.56 = 2,793.12/x
3. Step 3: Cross multiply
   9,718.56x = 14,578.56 × 2,793.12
4. Step 4: Simplify right side
   9,718.56x = 40,719,667.51
5. Step 5: Solve for x
   x = 40,719,667.51/9,718.56
6. Step 6: Final answer
   x = 4,189.89