Finding the Fourth Proportional to 23,250.86, 32,085.96 and 12,639.86

Step by Step Solution

1. Step 1: Write the proportion equation
   23,250.86 : 32,085.96 = 12,639.86 : x
2. Step 2: Convert to fraction form
   23,250.86/32,085.96 = 12,639.86/x
3. Step 3: Cross multiply
   23,250.86x = 32,085.96 × 12,639.86
4. Step 4: Simplify right side
   23,250.86x = 405,562,042.37
5. Step 5: Solve for x
   x = 405,562,042.37/23,250.86
6. Step 6: Final answer
   x = 17,442.88