Finding the Fourth Proportional to 23,821.50, 32,874.59 and 13,210.91

Step by Step Solution

1. Step 1: Write the proportion equation
   23,821.50 : 32,874.59 = 13,210.91 : x
2. Step 2: Convert to fraction form
   23,821.50/32,874.59 = 13,210.91/x
3. Step 3: Cross multiply
   23,821.50x = 32,874.59 × 13,210.91
4. Step 4: Simplify right side
   23,821.50x = 434,303,019.35
5. Step 5: Solve for x
   x = 434,303,019.35/23,821.50
6. Step 6: Final answer
   x = 18,231.56