Finding the Fourth Proportional to 12,711.76, 17,535 and 7,405.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,711.76 : 17,535 = 7,405.96 : x
2. Step 2: Convert to fraction form
   12,711.76/17,535 = 7,405.96/x
3. Step 3: Cross multiply
   12,711.76x = 17,535 × 7,405.96
4. Step 4: Simplify right side
   12,711.76x = 129,863,508.60
5. Step 5: Solve for x
   x = 129,863,508.60/12,711.76
6. Step 6: Final answer
   x = 10,216.01