Finding the Fourth Proportional to 23,281.85, 32,128 and 12,671.49

Step by Step Solution

1. Step 1: Write the proportion equation
   23,281.85 : 32,128 = 12,671.49 : x
2. Step 2: Convert to fraction form
   23,281.85/32,128 = 12,671.49/x
3. Step 3: Cross multiply
   23,281.85x = 32,128 × 12,671.49
4. Step 4: Simplify right side
   23,281.85x = 407,109,630.72
5. Step 5: Solve for x
   x = 407,109,630.72/23,281.85
6. Step 6: Final answer
   x = 17,486.14