Finding the Fourth Proportional to 23,528.43, 32,469.48 and 12,918.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,528.43 : 32,469.48 = 12,918.15 : x
2. Step 2: Convert to fraction form
   23,528.43/32,469.48 = 12,918.15/x
3. Step 3: Cross multiply
   23,528.43x = 32,469.48 × 12,918.15
4. Step 4: Simplify right side
   23,528.43x = 419,445,613.06
5. Step 5: Solve for x
   x = 419,445,613.06/23,528.43
6. Step 6: Final answer
   x = 17,827.18