Finding the Fourth Proportional to 17,978.98, 24,811.03 and 10,021.05

Step by Step Solution

1. Step 1: Write the proportion equation
   17,978.98 : 24,811.03 = 10,021.05 : x
2. Step 2: Convert to fraction form
   17,978.98/24,811.03 = 10,021.05/x
3. Step 3: Cross multiply
   17,978.98x = 24,811.03 × 10,021.05
4. Step 4: Simplify right side
   17,978.98x = 248,632,572.18
5. Step 5: Solve for x
   x = 248,632,572.18/17,978.98
6. Step 6: Final answer
   x = 13,829.07