Finding the Fourth Proportional to 17,870.14, 24,660.61 and 9,912.16

Step by Step Solution

1. Step 1: Write the proportion equation
   17,870.14 : 24,660.61 = 9,912.16 : x
2. Step 2: Convert to fraction form
   17,870.14/24,660.61 = 9,912.16/x
3. Step 3: Cross multiply
   17,870.14x = 24,660.61 × 9,912.16
4. Step 4: Simplify right side
   17,870.14x = 244,439,912.02
5. Step 5: Solve for x
   x = 244,439,912.02/17,870.14
6. Step 6: Final answer
   x = 13,678.68