Finding the Fourth Proportional to 12,832.50, 17,708.85 and 7,243.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,832.50 : 17,708.85 = 7,243.50 : x
2. Step 2: Convert to fraction form
   12,832.50/17,708.85 = 7,243.50/x
3. Step 3: Cross multiply
   12,832.50x = 17,708.85 × 7,243.50
4. Step 4: Simplify right side
   12,832.50x = 128,274,054.98
5. Step 5: Solve for x
   x = 128,274,054.98/12,832.50
6. Step 6: Final answer
   x = 9,996.03