Finding the Fourth Proportional to 12,855.34, 17,741.76 and 7,550.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,855.34 : 17,741.76 = 7,550.92 : x
2. Step 2: Convert to fraction form
   12,855.34/17,741.76 = 7,550.92/x
3. Step 3: Cross multiply
   12,855.34x = 17,741.76 × 7,550.92
4. Step 4: Simplify right side
   12,855.34x = 133,966,610.42
5. Step 5: Solve for x
   x = 133,966,610.42/12,855.34
6. Step 6: Final answer
   x = 10,421.09