Finding the Fourth Proportional to 20,628.49, 28,357.86 and 17,746.69

Step by Step Solution

1. Step 1: Write the proportion equation
   20,628.49 : 28,357.86 = 17,746.69 : x
2. Step 2: Convert to fraction form
   20,628.49/28,357.86 = 17,746.69/x
3. Step 3: Cross multiply
   20,628.49x = 28,357.86 × 17,746.69
4. Step 4: Simplify right side
   20,628.49x = 503,258,150.48
5. Step 5: Solve for x
   x = 503,258,150.48/20,628.49
6. Step 6: Final answer
   x = 24,396.27