Finding the Fourth Proportional to 23,592.20, 32,557.53 and 12,981.60

Step by Step Solution

1. Step 1: Write the proportion equation
   23,592.20 : 32,557.53 = 12,981.60 : x
2. Step 2: Convert to fraction form
   23,592.20/32,557.53 = 12,981.60/x
3. Step 3: Cross multiply
   23,592.20x = 32,557.53 × 12,981.60
4. Step 4: Simplify right side
   23,592.20x = 422,648,831.45
5. Step 5: Solve for x
   x = 422,648,831.45/23,592.20
6. Step 6: Final answer
   x = 17,914.77