Finding the Fourth Proportional to 11,012.21, 15,196.86 and 5,976.43

Step by Step Solution

1. Step 1: Write the proportion equation
   11,012.21 : 15,196.86 = 5,976.43 : x
2. Step 2: Convert to fraction form
   11,012.21/15,196.86 = 5,976.43/x
3. Step 3: Cross multiply
   11,012.21x = 15,196.86 × 5,976.43
4. Step 4: Simplify right side
   11,012.21x = 90,823,049.41
5. Step 5: Solve for x
   x = 90,823,049.41/11,012.21
6. Step 6: Final answer
   x = 8,247.48