Finding the Fourth Proportional to 10,425.94, 14,387.79 and 5,710.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,425.94 : 14,387.79 = 5,710.39 : x
2. Step 2: Convert to fraction form
   10,425.94/14,387.79 = 5,710.39/x
3. Step 3: Cross multiply
   10,425.94x = 14,387.79 × 5,710.39
4. Step 4: Simplify right side
   10,425.94x = 82,159,877.58
5. Step 5: Solve for x
   x = 82,159,877.58/10,425.94
6. Step 6: Final answer
   x = 7,880.33