Finding the Fourth Proportional to 17,980.50, 24,813.42 and 10,021.87

Step by Step Solution

1. Step 1: Write the proportion equation
   17,980.50 : 24,813.42 = 10,021.87 : x
2. Step 2: Convert to fraction form
   17,980.50/24,813.42 = 10,021.87/x
3. Step 3: Cross multiply
   17,980.50x = 24,813.42 × 10,021.87
4. Step 4: Simplify right side
   17,980.50x = 248,676,869.50
5. Step 5: Solve for x
   x = 248,676,869.50/17,980.50
6. Step 6: Final answer
   x = 13,830.36