Finding the Fourth Proportional to 23,451.65, 32,365 and 13,380.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,451.65 : 32,365 = 13,380.31 : x
2. Step 2: Convert to fraction form
   23,451.65/32,365 = 13,380.31/x
3. Step 3: Cross multiply
   23,451.65x = 32,365 × 13,380.31
4. Step 4: Simplify right side
   23,451.65x = 433,053,733.15
5. Step 5: Solve for x
   x = 433,053,733.15/23,451.65
6. Step 6: Final answer
   x = 18,465.81