Finding the Fourth Proportional to 17,977.98, 24,811.20 and 10,908.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,977.98 : 24,811.20 = 10,908.30 : x
2. Step 2: Convert to fraction form
   17,977.98/24,811.20 = 10,908.30/x
3. Step 3: Cross multiply
   17,977.98x = 24,811.20 × 10,908.30
4. Step 4: Simplify right side
   17,977.98x = 270,648,012.96
5. Step 5: Solve for x
   x = 270,648,012.96/17,977.98
6. Step 6: Final answer
   x = 15,054.42