Finding the Fourth Proportional to 20,513.59, 30,825.98 and 11,160.52

Step by Step Solution

1. Step 1: Write the proportion equation
   20,513.59 : 30,825.98 = 11,160.52 : x
2. Step 2: Convert to fraction form
   20,513.59/30,825.98 = 11,160.52/x
3. Step 3: Cross multiply
   20,513.59x = 30,825.98 × 11,160.52
4. Step 4: Simplify right side
   20,513.59x = 344,033,910.51
5. Step 5: Solve for x
   x = 344,033,910.51/20,513.59
6. Step 6: Final answer
   x = 16,771.02