Finding the Fourth Proportional to 23,520.18, 32,456.34 and 12,907.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,520.18 : 32,456.34 = 12,907.56 : x
2. Step 2: Convert to fraction form
   23,520.18/32,456.34 = 12,907.56/x
3. Step 3: Cross multiply
   23,520.18x = 32,456.34 × 12,907.56
4. Step 4: Simplify right side
   23,520.18x = 418,932,155.93
5. Step 5: Solve for x
   x = 418,932,155.93/23,520.18
6. Step 6: Final answer
   x = 17,811.61