Finding the Fourth Proportional to 17,938.68, 24,753.15 and 9,980.34

Step by Step Solution

1. Step 1: Write the proportion equation
   17,938.68 : 24,753.15 = 9,980.34 : x
2. Step 2: Convert to fraction form
   17,938.68/24,753.15 = 9,980.34/x
3. Step 3: Cross multiply
   17,938.68x = 24,753.15 × 9,980.34
4. Step 4: Simplify right side
   17,938.68x = 247,044,853.07
5. Step 5: Solve for x
   x = 247,044,853.07/17,938.68
6. Step 6: Final answer
   x = 13,771.63