Finding the Fourth Proportional to 23,518.95, 32,456.39 and 12,908.35

Step by Step Solution

1. Step 1: Write the proportion equation
   23,518.95 : 32,456.39 = 12,908.35 : x
2. Step 2: Convert to fraction form
   23,518.95/32,456.39 = 12,908.35/x
3. Step 3: Cross multiply
   23,518.95x = 32,456.39 × 12,908.35
4. Step 4: Simplify right side
   23,518.95x = 418,958,441.86
5. Step 5: Solve for x
   x = 418,958,441.86/23,518.95
6. Step 6: Final answer
   x = 17,813.65