Finding the Fourth Proportional to 23,819.82, 32,870.80 and 13,209.22

Step by Step Solution

1. Step 1: Write the proportion equation
   23,819.82 : 32,870.80 = 13,209.22 : x
2. Step 2: Convert to fraction form
   23,819.82/32,870.80 = 13,209.22/x
3. Step 3: Cross multiply
   23,819.82x = 32,870.80 × 13,209.22
4. Step 4: Simplify right side
   23,819.82x = 434,197,628.78
5. Step 5: Solve for x
   x = 434,197,628.78/23,819.82
6. Step 6: Final answer
   x = 18,228.42