Finding the Fourth Proportional to 23,250.67, 32,085.79 and 12,640.07

Step by Step Solution

1. Step 1: Write the proportion equation
   23,250.67 : 32,085.79 = 12,640.07 : x
2. Step 2: Convert to fraction form
   23,250.67/32,085.79 = 12,640.07/x
3. Step 3: Cross multiply
   23,250.67x = 32,085.79 × 12,640.07
4. Step 4: Simplify right side
   23,250.67x = 405,566,680.22
5. Step 5: Solve for x
   x = 405,566,680.22/23,250.67
6. Step 6: Final answer
   x = 17,443.23