Finding the Fourth Proportional to 12,843.50, 17,724.04 and 7,254.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,843.50 : 17,724.04 = 7,254.50 : x
2. Step 2: Convert to fraction form
   12,843.50/17,724.04 = 7,254.50/x
3. Step 3: Cross multiply
   12,843.50x = 17,724.04 × 7,254.50
4. Step 4: Simplify right side
   12,843.50x = 128,579,048.18
5. Step 5: Solve for x
   x = 128,579,048.18/12,843.50
6. Step 6: Final answer
   x = 10,011.22