Finding the Fourth Proportional to 11,871.87, 17,771.35 and 7,468.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,871.87 : 17,771.35 = 7,468.71 : x
2. Step 2: Convert to fraction form
   11,871.87/17,771.35 = 7,468.71/x
3. Step 3: Cross multiply
   11,871.87x = 17,771.35 × 7,468.71
4. Step 4: Simplify right side
   11,871.87x = 132,729,059.46
5. Step 5: Solve for x
   x = 132,729,059.46/11,871.87
6. Step 6: Final answer
   x = 11,180.13