Finding the Fourth Proportional to 11,768.88, 17,655.50 and 3,871.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,768.88 : 17,655.50 = 3,871.83 : x
2. Step 2: Convert to fraction form
   11,768.88/17,655.50 = 3,871.83/x
3. Step 3: Cross multiply
   11,768.88x = 17,655.50 × 3,871.83
4. Step 4: Simplify right side
   11,768.88x = 68,359,094.57
5. Step 5: Solve for x
   x = 68,359,094.57/11,768.88
6. Step 6: Final answer
   x = 5,808.46