Finding the Fourth Proportional to 12,843.52, 17,724.88 and 7,536.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,843.52 : 17,724.88 = 7,536.40 : x
2. Step 2: Convert to fraction form
   12,843.52/17,724.88 = 7,536.40/x
3. Step 3: Cross multiply
   12,843.52x = 17,724.88 × 7,536.40
4. Step 4: Simplify right side
   12,843.52x = 133,581,785.63
5. Step 5: Solve for x
   x = 133,581,785.63/12,843.52
6. Step 6: Final answer
   x = 10,400.71