Finding the Fourth Proportional to 10,714.72, 14,786.16 and 5,999.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,714.72 : 14,786.16 = 5,999.20 : x
2. Step 2: Convert to fraction form
   10,714.72/14,786.16 = 5,999.20/x
3. Step 3: Cross multiply
   10,714.72x = 14,786.16 × 5,999.20
4. Step 4: Simplify right side
   10,714.72x = 88,705,131.07
5. Step 5: Solve for x
   x = 88,705,131.07/10,714.72
6. Step 6: Final answer
   x = 8,278.81