Finding the Fourth Proportional to 23,250.72, 32,085.28 and 12,640.08

Step by Step Solution

1. Step 1: Write the proportion equation
   23,250.72 : 32,085.28 = 12,640.08 : x
2. Step 2: Convert to fraction form
   23,250.72/32,085.28 = 12,640.08/x
3. Step 3: Cross multiply
   23,250.72x = 32,085.28 × 12,640.08
4. Step 4: Simplify right side
   23,250.72x = 405,560,506.02
5. Step 5: Solve for x
   x = 405,560,506.02/23,250.72
6. Step 6: Final answer
   x = 17,442.92