Finding the Fourth Proportional to 11,222.10, 16,834.86 and 3,429

Step by Step Solution

1. Step 1: Write the proportion equation
   11,222.10 : 16,834.86 = 3,429 : x
2. Step 2: Convert to fraction form
   11,222.10/16,834.86 = 3,429/x
3. Step 3: Cross multiply
   11,222.10x = 16,834.86 × 3,429
4. Step 4: Simplify right side
   11,222.10x = 57,726,734.94
5. Step 5: Solve for x
   x = 57,726,734.94/11,222.10
6. Step 6: Final answer
   x = 5,144.02