Finding the Fourth Proportional to 23,517.72, 32,453.34 and 12,907.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,517.72 : 32,453.34 = 12,907.12 : x
2. Step 2: Convert to fraction form
   23,517.72/32,453.34 = 12,907.12/x
3. Step 3: Cross multiply
   23,517.72x = 32,453.34 × 12,907.12
4. Step 4: Simplify right side
   23,517.72x = 418,879,153.78
5. Step 5: Solve for x
   x = 418,879,153.78/23,517.72
6. Step 6: Final answer
   x = 17,811.21