Finding the Fourth Proportional to 17,870.54, 24,661.02 and 9,912.56

Step by Step Solution

1. Step 1: Write the proportion equation
   17,870.54 : 24,661.02 = 9,912.56 : x
2. Step 2: Convert to fraction form
   17,870.54/24,661.02 = 9,912.56/x
3. Step 3: Cross multiply
   17,870.54x = 24,661.02 × 9,912.56
4. Step 4: Simplify right side
   17,870.54x = 244,453,840.41
5. Step 5: Solve for x
   x = 244,453,840.41/17,870.54
6. Step 6: Final answer
   x = 13,679.15