Finding the Fourth Proportional to 23,819.46, 32,870.67 and 13,209.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,819.46 : 32,870.67 = 13,209.12 : x
2. Step 2: Convert to fraction form
   23,819.46/32,870.67 = 13,209.12/x
3. Step 3: Cross multiply
   23,819.46x = 32,870.67 × 13,209.12
4. Step 4: Simplify right side
   23,819.46x = 434,192,624.51
5. Step 5: Solve for x
   x = 434,192,624.51/23,819.46
6. Step 6: Final answer
   x = 18,228.48