Finding the Fourth Proportional to 17,979.69, 24,812.55 and 10,021.71

Step by Step Solution

1. Step 1: Write the proportion equation
   17,979.69 : 24,812.55 = 10,021.71 : x
2. Step 2: Convert to fraction form
   17,979.69/24,812.55 = 10,021.71/x
3. Step 3: Cross multiply
   17,979.69x = 24,812.55 × 10,021.71
4. Step 4: Simplify right side
   17,979.69x = 248,664,180.46
5. Step 5: Solve for x
   x = 248,664,180.46/17,979.69
6. Step 6: Final answer
   x = 13,830.28