Finding the Fourth Proportional to 17,873.16, 24,663.78 and 9,915.12

Step by Step Solution

1. Step 1: Write the proportion equation
   17,873.16 : 24,663.78 = 9,915.12 : x
2. Step 2: Convert to fraction form
   17,873.16/24,663.78 = 9,915.12/x
3. Step 3: Cross multiply
   17,873.16x = 24,663.78 × 9,915.12
4. Step 4: Simplify right side
   17,873.16x = 244,544,338.35
5. Step 5: Solve for x
   x = 244,544,338.35/17,873.16
6. Step 6: Final answer
   x = 13,682.21