Finding the Fourth Proportional to 10,429.71, 14,392.92 and 5,713.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,429.71 : 14,392.92 = 5,713.89 : x
2. Step 2: Convert to fraction form
   10,429.71/14,392.92 = 5,713.89/x
3. Step 3: Cross multiply
   10,429.71x = 14,392.92 × 5,713.89
4. Step 4: Simplify right side
   10,429.71x = 82,239,561.66
5. Step 5: Solve for x
   x = 82,239,561.66/10,429.71
6. Step 6: Final answer
   x = 7,885.12