Finding the Fourth Proportional to 23,574.65, 35,320.32 and 12,456.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,574.65 : 35,320.32 = 12,456.72 : x
2. Step 2: Convert to fraction form
   23,574.65/35,320.32 = 12,456.72/x
3. Step 3: Cross multiply
   23,574.65x = 35,320.32 × 12,456.72
4. Step 4: Simplify right side
   23,574.65x = 439,975,336.55
5. Step 5: Solve for x
   x = 439,975,336.55/23,574.65
6. Step 6: Final answer
   x = 18,663.07