Finding the Fourth Proportional to 14,786.10, 20,404.89 and 8,071.88

Step by Step Solution

1. Step 1: Write the proportion equation
   14,786.10 : 20,404.89 = 8,071.88 : x
2. Step 2: Convert to fraction form
   14,786.10/20,404.89 = 8,071.88/x
3. Step 3: Cross multiply
   14,786.10x = 20,404.89 × 8,071.88
4. Step 4: Simplify right side
   14,786.10x = 164,705,721.47
5. Step 5: Solve for x
   x = 164,705,721.47/14,786.10
6. Step 6: Final answer
   x = 11,139.23