Finding the Fourth Proportional to 23,084.10, 31,855.50 and 13,012.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,084.10 : 31,855.50 = 13,012.56 : x
2. Step 2: Convert to fraction form
   23,084.10/31,855.50 = 13,012.56/x
3. Step 3: Cross multiply
   23,084.10x = 31,855.50 × 13,012.56
4. Step 4: Simplify right side
   23,084.10x = 414,521,605.08
5. Step 5: Solve for x
   x = 414,521,605.08/23,084.10
6. Step 6: Final answer
   x = 17,957.02