Finding the Fourth Proportional to 12,836.50, 17,714.37 and 7,247.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,836.50 : 17,714.37 = 7,247.50 : x
2. Step 2: Convert to fraction form
   12,836.50/17,714.37 = 7,247.50/x
3. Step 3: Cross multiply
   12,836.50x = 17,714.37 × 7,247.50
4. Step 4: Simplify right side
   12,836.50x = 128,384,896.58
5. Step 5: Solve for x
   x = 128,384,896.58/12,836.50
6. Step 6: Final answer
   x = 10,001.55