Finding the Fourth Proportional to 17,978.85, 24,810.92 and 10,021.58

Step by Step Solution

1. Step 1: Write the proportion equation
   17,978.85 : 24,810.92 = 10,021.58 : x
2. Step 2: Convert to fraction form
   17,978.85/24,810.92 = 10,021.58/x
3. Step 3: Cross multiply
   17,978.85x = 24,810.92 × 10,021.58
4. Step 4: Simplify right side
   17,978.85x = 248,644,495.60
5. Step 5: Solve for x
   x = 248,644,495.60/17,978.85
6. Step 6: Final answer
   x = 13,829.84