Finding the Fourth Proportional to 10,429.72, 14,392.68 and 5,713.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,429.72 : 14,392.68 = 5,713.96 : x
2. Step 2: Convert to fraction form
   10,429.72/14,392.68 = 5,713.96/x
3. Step 3: Cross multiply
   10,429.72x = 14,392.68 × 5,713.96
4. Step 4: Simplify right side
   10,429.72x = 82,239,197.81
5. Step 5: Solve for x
   x = 82,239,197.81/10,429.72
6. Step 6: Final answer
   x = 7,885.08