Finding the Fourth Proportional to 17,898.54, 24,699.56 and 9,940.70

Step by Step Solution

1. Step 1: Write the proportion equation
   17,898.54 : 24,699.56 = 9,940.70 : x
2. Step 2: Convert to fraction form
   17,898.54/24,699.56 = 9,940.70/x
3. Step 3: Cross multiply
   17,898.54x = 24,699.56 × 9,940.70
4. Step 4: Simplify right side
   17,898.54x = 245,530,742.89
5. Step 5: Solve for x
   x = 245,530,742.89/17,898.54
6. Step 6: Final answer
   x = 13,717.92