Finding the Fourth Proportional to 10,684.47, 16,036.68 and 5,423.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,684.47 : 16,036.68 = 5,423.22 : x
2. Step 2: Convert to fraction form
   10,684.47/16,036.68 = 5,423.22/x
3. Step 3: Cross multiply
   10,684.47x = 16,036.68 × 5,423.22
4. Step 4: Simplify right side
   10,684.47x = 86,970,443.71
5. Step 5: Solve for x
   x = 86,970,443.71/10,684.47
6. Step 6: Final answer
   x = 8,139.89