Finding the Fourth Proportional to 12,858.42, 17,744.46 and 7,553.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,858.42 : 17,744.46 = 7,553.72 : x
2. Step 2: Convert to fraction form
   12,858.42/17,744.46 = 7,553.72/x
3. Step 3: Cross multiply
   12,858.42x = 17,744.46 × 7,553.72
4. Step 4: Simplify right side
   12,858.42x = 134,036,682.39
5. Step 5: Solve for x
   x = 134,036,682.39/12,858.42
6. Step 6: Final answer
   x = 10,424.04