Finding the Fourth Proportional to 10,422.20, 14,382.63 and 5,706.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,422.20 : 14,382.63 = 5,706.47 : x
2. Step 2: Convert to fraction form
   10,422.20/14,382.63 = 5,706.47/x
3. Step 3: Cross multiply
   10,422.20x = 14,382.63 × 5,706.47
4. Step 4: Simplify right side
   10,422.20x = 82,074,046.62
5. Step 5: Solve for x
   x = 82,074,046.62/10,422.20
6. Step 6: Final answer
   x = 7,874.93