Finding the Fourth Proportional to 30,623.84, 42,257.63 and 17,196.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,623.84 : 42,257.63 = 17,196.56 : x
2. Step 2: Convert to fraction form
   30,623.84/42,257.63 = 17,196.56/x
3. Step 3: Cross multiply
   30,623.84x = 42,257.63 × 17,196.56
4. Step 4: Simplify right side
   30,623.84x = 726,685,869.75
5. Step 5: Solve for x
   x = 726,685,869.75/30,623.84
6. Step 6: Final answer
   x = 23,729.42