Finding the Fourth Proportional to 23,789.32, 32,829.42 and 13,179.64

Step by Step Solution

1. Step 1: Write the proportion equation
   23,789.32 : 32,829.42 = 13,179.64 : x
2. Step 2: Convert to fraction form
   23,789.32/32,829.42 = 13,179.64/x
3. Step 3: Cross multiply
   23,789.32x = 32,829.42 × 13,179.64
4. Step 4: Simplify right side
   23,789.32x = 432,679,937.01
5. Step 5: Solve for x
   x = 432,679,937.01/23,789.32
6. Step 6: Final answer
   x = 18,187.99