Finding the Fourth Proportional to 17,870.92, 24,660.77 and 9,912.98

Step by Step Solution

1. Step 1: Write the proportion equation
   17,870.92 : 24,660.77 = 9,912.98 : x
2. Step 2: Convert to fraction form
   17,870.92/24,660.77 = 9,912.98/x
3. Step 3: Cross multiply
   17,870.92x = 24,660.77 × 9,912.98
4. Step 4: Simplify right side
   17,870.92x = 244,461,731.88
5. Step 5: Solve for x
   x = 244,461,731.88/17,870.92
6. Step 6: Final answer
   x = 13,679.31