Finding the Fourth Proportional to 14,311.58, 21,464.88 and 3,781.71

Step by Step Solution

1. Step 1: Write the proportion equation
   14,311.58 : 21,464.88 = 3,781.71 : x
2. Step 2: Convert to fraction form
   14,311.58/21,464.88 = 3,781.71/x
3. Step 3: Cross multiply
   14,311.58x = 21,464.88 × 3,781.71
4. Step 4: Simplify right side
   14,311.58x = 81,173,951.34
5. Step 5: Solve for x
   x = 81,173,951.34/14,311.58
6. Step 6: Final answer
   x = 5,671.91