Finding the Fourth Proportional to 21,617.30, 32,429.31 and 9,137.37

Step by Step Solution

1. Step 1: Write the proportion equation
   21,617.30 : 32,429.31 = 9,137.37 : x
2. Step 2: Convert to fraction form
   21,617.30/32,429.31 = 9,137.37/x
3. Step 3: Cross multiply
   21,617.30x = 32,429.31 × 9,137.37
4. Step 4: Simplify right side
   21,617.30x = 296,318,604.31
5. Step 5: Solve for x
   x = 296,318,604.31/21,617.30
6. Step 6: Final answer
   x = 13,707.48