Finding the Fourth Proportional to 23,812.16, 32,860.72 and 13,057.04

Step by Step Solution

1. Step 1: Write the proportion equation
   23,812.16 : 32,860.72 = 13,057.04 : x
2. Step 2: Convert to fraction form
   23,812.16/32,860.72 = 13,057.04/x
3. Step 3: Cross multiply
   23,812.16x = 32,860.72 × 13,057.04
4. Step 4: Simplify right side
   23,812.16x = 429,063,735.47
5. Step 5: Solve for x
   x = 429,063,735.47/23,812.16
6. Step 6: Final answer
   x = 18,018.68