Finding the Fourth Proportional to 17,870.82, 24,660.82 and 9,912.87

Step by Step Solution

1. Step 1: Write the proportion equation
   17,870.82 : 24,660.82 = 9,912.87 : x
2. Step 2: Convert to fraction form
   17,870.82/24,660.82 = 9,912.87/x
3. Step 3: Cross multiply
   17,870.82x = 24,660.82 × 9,912.87
4. Step 4: Simplify right side
   17,870.82x = 244,459,453.19
5. Step 5: Solve for x
   x = 244,459,453.19/17,870.82
6. Step 6: Final answer
   x = 13,679.26