Finding the Fourth Proportional to 10,426.50, 14,388.57 and 5,710.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,426.50 : 14,388.57 = 5,710.86 : x
2. Step 2: Convert to fraction form
   10,426.50/14,388.57 = 5,710.86/x
3. Step 3: Cross multiply
   10,426.50x = 14,388.57 × 5,710.86
4. Step 4: Simplify right side
   10,426.50x = 82,171,108.87
5. Step 5: Solve for x
   x = 82,171,108.87/10,426.50
6. Step 6: Final answer
   x = 7,880.99