Finding the Fourth Proportional to 10,426.13, 14,388.05 and 5,710.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,426.13 : 14,388.05 = 5,710.42 : x
2. Step 2: Convert to fraction form
   10,426.13/14,388.05 = 5,710.42/x
3. Step 3: Cross multiply
   10,426.13x = 14,388.05 × 5,710.42
4. Step 4: Simplify right side
   10,426.13x = 82,161,786.79
5. Step 5: Solve for x
   x = 82,161,786.79/10,426.13
6. Step 6: Final answer
   x = 7,880.38