Finding the Fourth Proportional to 12,417.84, 17,143.92 and 7,704.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,417.84 : 17,143.92 = 7,704.72 : x
2. Step 2: Convert to fraction form
   12,417.84/17,143.92 = 7,704.72/x
3. Step 3: Cross multiply
   12,417.84x = 17,143.92 × 7,704.72
4. Step 4: Simplify right side
   12,417.84x = 132,089,103.30
5. Step 5: Solve for x
   x = 132,089,103.30/12,417.84
6. Step 6: Final answer
   x = 10,637.04