Finding the Fourth Proportional to 14,570.04, 20,105.91 and 8,196.78

Step by Step Solution

1. Step 1: Write the proportion equation
   14,570.04 : 20,105.91 = 8,196.78 : x
2. Step 2: Convert to fraction form
   14,570.04/20,105.91 = 8,196.78/x
3. Step 3: Cross multiply
   14,570.04x = 20,105.91 × 8,196.78
4. Step 4: Simplify right side
   14,570.04x = 164,803,720.97
5. Step 5: Solve for x
   x = 164,803,720.97/14,570.04
6. Step 6: Final answer
   x = 11,311.14