Finding the Fourth Proportional to 10,426.32, 14,388.51 and 5,710.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,426.32 : 14,388.51 = 5,710.31 : x
2. Step 2: Convert to fraction form
   10,426.32/14,388.51 = 5,710.31/x
3. Step 3: Cross multiply
   10,426.32x = 14,388.51 × 5,710.31
4. Step 4: Simplify right side
   10,426.32x = 82,162,780.60
5. Step 5: Solve for x
   x = 82,162,780.60/10,426.32
6. Step 6: Final answer
   x = 7,880.32