Finding the Fourth Proportional to 10,426.76, 14,388.94 and 5,711.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,426.76 : 14,388.94 = 5,711.48 : x
2. Step 2: Convert to fraction form
   10,426.76/14,388.94 = 5,711.48/x
3. Step 3: Cross multiply
   10,426.76x = 14,388.94 × 5,711.48
4. Step 4: Simplify right side
   10,426.76x = 82,182,143.03
5. Step 5: Solve for x
   x = 82,182,143.03/10,426.76
6. Step 6: Final answer
   x = 7,881.85