Finding the Fourth Proportional to 22,860.48, 34,262.46 and 13,491

Step by Step Solution

1. Step 1: Write the proportion equation
   22,860.48 : 34,262.46 = 13,491 : x
2. Step 2: Convert to fraction form
   22,860.48/34,262.46 = 13,491/x
3. Step 3: Cross multiply
   22,860.48x = 34,262.46 × 13,491
4. Step 4: Simplify right side
   22,860.48x = 462,234,847.86
5. Step 5: Solve for x
   x = 462,234,847.86/22,860.48
6. Step 6: Final answer
   x = 20,219.82