Finding the Fourth Proportional to 10,814.51, 16,220.37 and 3,419.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,814.51 : 16,220.37 = 3,419.72 : x
2. Step 2: Convert to fraction form
   10,814.51/16,220.37 = 3,419.72/x
3. Step 3: Cross multiply
   10,814.51x = 16,220.37 × 3,419.72
4. Step 4: Simplify right side
   10,814.51x = 55,469,123.70
5. Step 5: Solve for x
   x = 55,469,123.70/10,814.51
6. Step 6: Final answer
   x = 5,129.14