Finding the Fourth Proportional to 23,467.87, 32,385.71 and 12,857.47

Step by Step Solution

1. Step 1: Write the proportion equation
   23,467.87 : 32,385.71 = 12,857.47 : x
2. Step 2: Convert to fraction form
   23,467.87/32,385.71 = 12,857.47/x
3. Step 3: Cross multiply
   23,467.87x = 32,385.71 × 12,857.47
4. Step 4: Simplify right side
   23,467.87x = 416,398,294.75
5. Step 5: Solve for x
   x = 416,398,294.75/23,467.87
6. Step 6: Final answer
   x = 17,743.34