Finding the Fourth Proportional to 13,265.15, 19,871.64 and 7,706.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,265.15 : 19,871.64 = 7,706.82 : x
2. Step 2: Convert to fraction form
   13,265.15/19,871.64 = 7,706.82/x
3. Step 3: Cross multiply
   13,265.15x = 19,871.64 × 7,706.82
4. Step 4: Simplify right side
   13,265.15x = 153,147,227.10
5. Step 5: Solve for x
   x = 153,147,227.10/13,265.15
6. Step 6: Final answer
   x = 11,545.09