Finding the Fourth Proportional to 20,429.10, 30,628.06 and 10,562.08

Step by Step Solution

1. Step 1: Write the proportion equation
   20,429.10 : 30,628.06 = 10,562.08 : x
2. Step 2: Convert to fraction form
   20,429.10/30,628.06 = 10,562.08/x
3. Step 3: Cross multiply
   20,429.10x = 30,628.06 × 10,562.08
4. Step 4: Simplify right side
   20,429.10x = 323,496,019.96
5. Step 5: Solve for x
   x = 323,496,019.96/20,429.10
6. Step 6: Final answer
   x = 15,835.06