Finding the Fourth Proportional to 12,841.50, 17,721.27 and 7,252.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,841.50 : 17,721.27 = 7,252.50 : x
2. Step 2: Convert to fraction form
   12,841.50/17,721.27 = 7,252.50/x
3. Step 3: Cross multiply
   12,841.50x = 17,721.27 × 7,252.50
4. Step 4: Simplify right side
   12,841.50x = 128,523,510.68
5. Step 5: Solve for x
   x = 128,523,510.68/12,841.50
6. Step 6: Final answer
   x = 10,008.45