Finding the Fourth Proportional to 17,854.63, 24,639.01 and 9,896.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,854.63 : 24,639.01 = 9,896.78 : x
2. Step 2: Convert to fraction form
   17,854.63/24,639.01 = 9,896.78/x
3. Step 3: Cross multiply
   17,854.63x = 24,639.01 × 9,896.78
4. Step 4: Simplify right side
   17,854.63x = 243,846,898.24
5. Step 5: Solve for x
   x = 243,846,898.24/17,854.63
6. Step 6: Final answer
   x = 13,657.35