Finding the Fourth Proportional to 23,153.19, 31,949.50 and 13,082.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,153.19 : 31,949.50 = 13,082.50 : x
2. Step 2: Convert to fraction form
   23,153.19/31,949.50 = 13,082.50/x
3. Step 3: Cross multiply
   23,153.19x = 31,949.50 × 13,082.50
4. Step 4: Simplify right side
   23,153.19x = 417,979,333.75
5. Step 5: Solve for x
   x = 417,979,333.75/23,153.19
6. Step 6: Final answer
   x = 18,052.78