Finding the Fourth Proportional to 10,426.42, 14,387.97 and 5,710.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,426.42 : 14,387.97 = 5,710.96 : x
2. Step 2: Convert to fraction form
   10,426.42/14,387.97 = 5,710.96/x
3. Step 3: Cross multiply
   10,426.42x = 14,387.97 × 5,710.96
4. Step 4: Simplify right side
   10,426.42x = 82,169,121.15
5. Step 5: Solve for x
   x = 82,169,121.15/10,426.42
6. Step 6: Final answer
   x = 7,880.86