Finding the Fourth Proportional to 17,877.43, 24,671.04 and 9,919.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,877.43 : 24,671.04 = 9,919.78 : x
2. Step 2: Convert to fraction form
   17,877.43/24,671.04 = 9,919.78/x
3. Step 3: Cross multiply
   17,877.43x = 24,671.04 × 9,919.78
4. Step 4: Simplify right side
   17,877.43x = 244,731,350.85
5. Step 5: Solve for x
   x = 244,731,350.85/17,877.43
6. Step 6: Final answer
   x = 13,689.41