Finding the Fourth Proportional to 10,426.07, 14,388.18 and 5,710.35

Step by Step Solution

1. Step 1: Write the proportion equation
   10,426.07 : 14,388.18 = 5,710.35 : x
2. Step 2: Convert to fraction form
   10,426.07/14,388.18 = 5,710.35/x
3. Step 3: Cross multiply
   10,426.07x = 14,388.18 × 5,710.35
4. Step 4: Simplify right side
   10,426.07x = 82,161,543.66
5. Step 5: Solve for x
   x = 82,161,543.66/10,426.07
6. Step 6: Final answer
   x = 7,880.40