Finding the Fourth Proportional to 10,429.92, 14,392.88 and 5,714.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,429.92 : 14,392.88 = 5,714.08 : x
2. Step 2: Convert to fraction form
   10,429.92/14,392.88 = 5,714.08/x
3. Step 3: Cross multiply
   10,429.92x = 14,392.88 × 5,714.08
4. Step 4: Simplify right side
   10,429.92x = 82,242,067.75
5. Step 5: Solve for x
   x = 82,242,067.75/10,429.92
6. Step 6: Final answer
   x = 7,885.21