Finding the Fourth Proportional to 17,898.59, 24,699.57 and 9,940.61

Step by Step Solution

1. Step 1: Write the proportion equation
   17,898.59 : 24,699.57 = 9,940.61 : x
2. Step 2: Convert to fraction form
   17,898.59/24,699.57 = 9,940.61/x
3. Step 3: Cross multiply
   17,898.59x = 24,699.57 × 9,940.61
4. Step 4: Simplify right side
   17,898.59x = 245,528,669.04
5. Step 5: Solve for x
   x = 245,528,669.04/17,898.59
6. Step 6: Final answer
   x = 13,717.77