Finding the Fourth Proportional to 23,420.76, 32,309.82 and 13,479

Step by Step Solution

1. Step 1: Write the proportion equation
   23,420.76 : 32,309.82 = 13,479 : x
2. Step 2: Convert to fraction form
   23,420.76/32,309.82 = 13,479/x
3. Step 3: Cross multiply
   23,420.76x = 32,309.82 × 13,479
4. Step 4: Simplify right side
   23,420.76x = 435,504,063.78
5. Step 5: Solve for x
   x = 435,504,063.78/23,420.76
6. Step 6: Final answer
   x = 18,594.79