Finding the Fourth Proportional to 12,740.42, 17,582.67 and 7,704.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,740.42 : 17,582.67 = 7,704.86 : x
2. Step 2: Convert to fraction form
   12,740.42/17,582.67 = 7,704.86/x
3. Step 3: Cross multiply
   12,740.42x = 17,582.67 × 7,704.86
4. Step 4: Simplify right side
   12,740.42x = 135,471,922.86
5. Step 5: Solve for x
   x = 135,471,922.86/12,740.42
6. Step 6: Final answer
   x = 10,633.24