Finding the Fourth Proportional to 17,857.31, 24,641.42 and 9,898.85

Step by Step Solution

1. Step 1: Write the proportion equation
   17,857.31 : 24,641.42 = 9,898.85 : x
2. Step 2: Convert to fraction form
   17,857.31/24,641.42 = 9,898.85/x
3. Step 3: Cross multiply
   17,857.31x = 24,641.42 × 9,898.85
4. Step 4: Simplify right side
   17,857.31x = 243,921,720.37
5. Step 5: Solve for x
   x = 243,921,720.37/17,857.31
6. Step 6: Final answer
   x = 13,659.49