Finding the Fourth Proportional to 11,863.53, 17,793.27 and 3,971.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,863.53 : 17,793.27 = 3,971.50 : x
2. Step 2: Convert to fraction form
   11,863.53/17,793.27 = 3,971.50/x
3. Step 3: Cross multiply
   11,863.53x = 17,793.27 × 3,971.50
4. Step 4: Simplify right side
   11,863.53x = 70,665,927.32
5. Step 5: Solve for x
   x = 70,665,927.32/11,863.53
6. Step 6: Final answer
   x = 5,956.57