Finding the Fourth Proportional to 20,429.69, 30,628.96 and 10,562.67

Step by Step Solution

1. Step 1: Write the proportion equation
   20,429.69 : 30,628.96 = 10,562.67 : x
2. Step 2: Convert to fraction form
   20,429.69/30,628.96 = 10,562.67/x
3. Step 3: Cross multiply
   20,429.69x = 30,628.96 × 10,562.67
4. Step 4: Simplify right side
   20,429.69x = 323,523,570.52
5. Step 5: Solve for x
   x = 323,523,570.52/20,429.69
6. Step 6: Final answer
   x = 15,835.95