Finding the Fourth Proportional to 17,870.15, 24,660.96 and 9,912.53

Step by Step Solution

1. Step 1: Write the proportion equation
   17,870.15 : 24,660.96 = 9,912.53 : x
2. Step 2: Convert to fraction form
   17,870.15/24,660.96 = 9,912.53/x
3. Step 3: Cross multiply
   17,870.15x = 24,660.96 × 9,912.53
4. Step 4: Simplify right side
   17,870.15x = 244,452,505.83
5. Step 5: Solve for x
   x = 244,452,505.83/17,870.15
6. Step 6: Final answer
   x = 13,679.38