Finding the Fourth Proportional to 13,429.29, 20,149.43 and 7,196.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,429.29 : 20,149.43 = 7,196.34 : x
2. Step 2: Convert to fraction form
   13,429.29/20,149.43 = 7,196.34/x
3. Step 3: Cross multiply
   13,429.29x = 20,149.43 × 7,196.34
4. Step 4: Simplify right side
   13,429.29x = 145,002,113.10
5. Step 5: Solve for x
   x = 145,002,113.10/13,429.29
6. Step 6: Final answer
   x = 10,797.45