Finding the Fourth Proportional to 11,531.83, 17,297.76 and 3,211.87

Step by Step Solution

1. Step 1: Write the proportion equation
   11,531.83 : 17,297.76 = 3,211.87 : x
2. Step 2: Convert to fraction form
   11,531.83/17,297.76 = 3,211.87/x
3. Step 3: Cross multiply
   11,531.83x = 17,297.76 × 3,211.87
4. Step 4: Simplify right side
   11,531.83x = 55,558,105.14
5. Step 5: Solve for x
   x = 55,558,105.14/11,531.83
6. Step 6: Final answer
   x = 4,817.81