Finding the Fourth Proportional to 10,812.71, 16,218.63 and 3,417.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,812.71 : 16,218.63 = 3,417.59 : x
2. Step 2: Convert to fraction form
   10,812.71/16,218.63 = 3,417.59/x
3. Step 3: Cross multiply
   10,812.71x = 16,218.63 × 3,417.59
4. Step 4: Simplify right side
   10,812.71x = 55,428,627.70
5. Step 5: Solve for x
   x = 55,428,627.70/10,812.71
6. Step 6: Final answer
   x = 5,126.25