Finding the Fourth Proportional to 10,809.59, 16,212.02 and 4,143.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,809.59 : 16,212.02 = 4,143.83 : x
2. Step 2: Convert to fraction form
   10,809.59/16,212.02 = 4,143.83/x
3. Step 3: Cross multiply
   10,809.59x = 16,212.02 × 4,143.83
4. Step 4: Simplify right side
   10,809.59x = 67,179,753.06
5. Step 5: Solve for x
   x = 67,179,753.06/10,809.59
6. Step 6: Final answer
   x = 6,214.83