Finding the Fourth Proportional to 9,718.72, 14,574.40 and 3,143.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,718.72 : 14,574.40 = 3,143.14 : x
2. Step 2: Convert to fraction form
   9,718.72/14,574.40 = 3,143.14/x
3. Step 3: Cross multiply
   9,718.72x = 14,574.40 × 3,143.14
4. Step 4: Simplify right side
   9,718.72x = 45,809,335.32
5. Step 5: Solve for x
   x = 45,809,335.32/9,718.72
6. Step 6: Final answer
   x = 4,713.52