Finding the Fourth Proportional to 17,978.72, 24,811.49 and 10,021.01

Step by Step Solution

1. Step 1: Write the proportion equation
   17,978.72 : 24,811.49 = 10,021.01 : x
2. Step 2: Convert to fraction form
   17,978.72/24,811.49 = 10,021.01/x
3. Step 3: Cross multiply
   17,978.72x = 24,811.49 × 10,021.01
4. Step 4: Simplify right side
   17,978.72x = 248,636,189.40
5. Step 5: Solve for x
   x = 248,636,189.40/17,978.72
6. Step 6: Final answer
   x = 13,829.47