Finding the Fourth Proportional to 17,048.80, 23,535.83 and 13,211.83

Step by Step Solution

1. Step 1: Write the proportion equation
   17,048.80 : 23,535.83 = 13,211.83 : x
2. Step 2: Convert to fraction form
   17,048.80/23,535.83 = 13,211.83/x
3. Step 3: Cross multiply
   17,048.80x = 23,535.83 × 13,211.83
4. Step 4: Simplify right side
   17,048.80x = 310,951,384.87
5. Step 5: Solve for x
   x = 310,951,384.87/17,048.80
6. Step 6: Final answer
   x = 18,238.90