Finding the Fourth Proportional to 12,843.62, 17,724.32 and 7,538.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,843.62 : 17,724.32 = 7,538.52 : x
2. Step 2: Convert to fraction form
   12,843.62/17,724.32 = 7,538.52/x
3. Step 3: Cross multiply
   12,843.62x = 17,724.32 × 7,538.52
4. Step 4: Simplify right side
   12,843.62x = 133,615,140.81
5. Step 5: Solve for x
   x = 133,615,140.81/12,843.62
6. Step 6: Final answer
   x = 10,403.23