Finding the Fourth Proportional to 18,624.96, 27,949.59 and 17,123.22

Step by Step Solution

1. Step 1: Write the proportion equation
   18,624.96 : 27,949.59 = 17,123.22 : x
2. Step 2: Convert to fraction form
   18,624.96/27,949.59 = 17,123.22/x
3. Step 3: Cross multiply
   18,624.96x = 27,949.59 × 17,123.22
4. Step 4: Simplify right side
   18,624.96x = 478,586,978.48
5. Step 5: Solve for x
   x = 478,586,978.48/18,624.96
6. Step 6: Final answer
   x = 25,696.00