Finding the Fourth Proportional to 23,153.78, 31,944.72 and 14,196.80

Step by Step Solution

1. Step 1: Write the proportion equation
   23,153.78 : 31,944.72 = 14,196.80 : x
2. Step 2: Convert to fraction form
   23,153.78/31,944.72 = 14,196.80/x
3. Step 3: Cross multiply
   23,153.78x = 31,944.72 × 14,196.80
4. Step 4: Simplify right side
   23,153.78x = 453,512,800.90
5. Step 5: Solve for x
   x = 453,512,800.90/23,153.78
6. Step 6: Final answer
   x = 19,586.99