Finding the Fourth Proportional to 17,870.24, 24,662.40 and 9,915.02

Step by Step Solution

1. Step 1: Write the proportion equation
   17,870.24 : 24,662.40 = 9,915.02 : x
2. Step 2: Convert to fraction form
   17,870.24/24,662.40 = 9,915.02/x
3. Step 3: Cross multiply
   17,870.24x = 24,662.40 × 9,915.02
4. Step 4: Simplify right side
   17,870.24x = 244,528,189.25
5. Step 5: Solve for x
   x = 244,528,189.25/17,870.24
6. Step 6: Final answer
   x = 13,683.54