Finding the Fourth Proportional to 14,618.37, 21,945.69 and 9,719.49

Step by Step Solution

1. Step 1: Write the proportion equation
   14,618.37 : 21,945.69 = 9,719.49 : x
2. Step 2: Convert to fraction form
   14,618.37/21,945.69 = 9,719.49/x
3. Step 3: Cross multiply
   14,618.37x = 21,945.69 × 9,719.49
4. Step 4: Simplify right side
   14,618.37x = 213,300,914.50
5. Step 5: Solve for x
   x = 213,300,914.50/14,618.37
6. Step 6: Final answer
   x = 14,591.29